Maintenance & Repair

Regular oil changes are crucial for keeping your semi-truck’s engine clean and extending its lifespan. However, costs can add up quickly, impacting your profits if not managed wisely.

So, how do you know when it’s time for an oil change, and what does a typical semi-truck oil change cost? This guide covers everything you need to know, including cost factors and money-saving tips to keep your truck running smoothly without breaking the bank.

Understanding the Importance of Oil Changes

Besides getting rid of the contaminants, dirt, and debris in your old oil, keeping your engine clean, and preventing engine seizure, frequent oil changes are crucial for the following reasons:

• Protecting your engine from premature wear and tear. Your semi-truck engine consists of several precision-engineered parts designed to work together. Oil lubricates these parts, dissipates heat, and prevents friction, which causes wear and tear that can reduce its performance.

 

• Increased engine efficiency. When your engine is lubricated properly, it requires less energy to rotate as you drive, maximizing its performance.

 

• Better gas mileage. An efficient engine performs at its optimum without overusing fuel. You can cover more miles with less fuel, reducing your fuel budget and saving more money.

 

• Environmental benefit. When your semi-truck engine works efficiently, it burns less fuel and releases fewer emissions into the environment.

Factors Influencing Oil Change Costs

The average cost of a semi-truck oil change depends on several factors. Some of these include:

• Engine design complexities. The engines of newer trucks are more complex and may require specialized oil than older ones.

 

• Type of oil used. Some truck models work best on synthetic oil, while others require conventional or a blend of synthetic oil. Different types of oil cost different amounts. For example, if your semi-truck requires synthetic oil, your oil changes will cost more as it’s the most expensive oil.

 

• Labor and service provider expenses. Some engines are more complex to work on than others, especially the newer models. Service providers will, therefore, charge differently for their oil change labor and other add-on services.

 

• Geographic location. Oil change service costs differ in various locations.

 

Typical Oil Change Intervals for Semi Trucks

Oil change frequency varies by semi-truck, but general guidelines are: 5,000 miles for conventional oil, 8,000 miles for semi-synthetic, and 10,000 miles for full synthetic. However, always refer to your truck’s user manual for the most accurate schedule.

Regular oil level checks during trips are essential to maintaining engine health. Here is a quick guide on checking your semi-truck oil level using the well-known dipstick method.

Risks of Neglecting Oil Changes

You might be wondering what would happen if you neglect regular oil changes. Well, some of the risks you’re exposing yourself to when you put off an oil change include:

• Engine damage. When you fail to replace your oil with fresh oil, dirt, and debris from the old oil accumulate. Your engine then develops carbon deposits that clog your system, leading to engine damage, which is usually more expensive to repair.

 

• Reduced fuel economy. Without proper lubrication, your semi-truck engine burns more fuel faster than usual. It decreases fuel economy as you’ll require more fuel to cover fewer miles. This will increase your operating costs and reduce your profits.

 

• Overheating. Extremely low engine oil levels cause your engine to build friction and run at higher-than-normal temperatures. As a result, your engine components begin to wear and tear rapidly, developing costly engine issues.

 

• Complete engine failure. Taking too long to change oil turns it into sludge. If this happens, your engine parts will not get lubricated. Instead, the sludge might gum them up, causing your semi-truck engine to seize and fail.

Semi Truck Oil Change Cost

A basic conventional oil change costs around $35, rising to $75 with add-ons like an oil filter replacement and tire rotation. Semi synthetic oil changes range from $40 to $100, while full synthetic costs $65 to $125.

However, prices vary depending on factors like truck model and special filters, with some changes exceeding $260.

Create a Preventative Maintenance Plan

One of the best ways to save money and ensure your engine operates efficiently is to create a preventative maintenance plan for your oil changes at the required intervals.

For cost-effective and reliable service, choose a trusted truck repair shop, preferably an independent one, as they’re often more affordable and provide personalized care.

Once you’ve found a mechanic, set a budget for regular oil changes and maintain a schedule. Keeping records of routine maintenance ensures timely oil changes and helps extend your truck’s lifespan.

Conclusion

Regular oil changes are essential to keeping your semi-truck running efficiently. While they require frequent spending, they help you save on fuel and prevent costly repairs in the long run.

For even greater savings, consider changing the oil yourself. Though you’ll need to invest in wrenches, an oil pan, a jack, and gloves, this one-time cost pays off with every DIY oil change.

If you ever need help financing other semi-truck repairs, call us. We offer affordable semi-truck repair loans tailored to your situation to keep you on the road.

Conducting pre-trip inspections is essential for your safety as a truck driver and the safety of all road users. That’s why the Federal Motor Carrier Safety Administration (FMCSA) provides pre-trip inspection checklist standards all commercial driver’s license (CDL) holders must adhere to before hitting the road.

Usually, meeting FMCSA’s pre-trip inspection standards involves a few steps and might take approximately 10 -15 minutes minimum. If you’re wondering what a pre-trip inspection checklist is and why it’s important, read on to learn more.

What is a Pre-Trip Inspection Checklist?

The Department of Transportation (DOT) pre-trip checklist is an essential tool for Class A and Class B commercial driver’s license (CDL) holders to review before operating their vehicles. It is a guide to help you inspect various parts of your commercial vehicle and ensure it’s in proper working order before heading out.

The specific items on a pre-trip checklist can vary depending on the type of commercial vehicle and its intended use. For commercial trucks, the checklist covers nearly all components, accessories, and systems, including the truck, trailer, and cargo.

For Class A CDL holders, the checklist focuses on towing systems, such as the trailer parking brake and coupling areas, and typically extends to the trailer, flatbed, or other towed items. In contrast, the Class B CDL checklist emphasizes systems and parts for non-towing commercial vehicles.

Both Class A and Class B checklists share common items, including checks for brake lights, oil levels, front and rear suspension, and minimum brake pad thickness, among others.

Importance of a Pre-Trip Checklist?

A thorough inspection checklist streamlines the pre-trip process, ensuring careful and consistent vehicle assessments without missing details. It also simplifies completing required inspection reports, which is crucial for several reasons:

• Safety–well-performed pre-trip inspections help you identify potential mechanical issues early. Detecting and resolving mechanical problems in time ensures your truck is safe to drive. It also minimizes delays from unexpected vehicle breakdowns.

 

• Compliance–FMCSA provides specific vehicle inspection regulations commercial drivers must follow to ensure their vehicles are in peak condition for maximum road safety. Failing to comply with these regulations or performing incomplete pre-trip inspections might lead to penalties and affect your Compliance, Safety, and Accountability (CSA) score.

Low CSA scores can increase insurance premiums, leading to high operating costs.

• Maintenance– routine pre-trip inspections ensure proper vehicle maintenance. You’ll prolong the vehicle’s lifespan and avoid costly repairs later.

 

• Company reputation–proper adherence to all federal inspection regulations demonstrates your commitment to safety and professionalism. It leaves a positive impression on customers and other industry stakeholders, boosting your company’s reputation.

What to Include on a Pre-Trip Inspection Checklist

Commercial trucking companies may prepare their own pre-trip inspection checklist, adding their expectations and twists to the pre-trip inspection procedure. However, all processes must follow the federal pre-trip inspection checklist criteria.

A standard legal pre-trip inspection procedure should include the following steps and elements.

Step 1: Examine The Engine Compartment

Examining the engine compartment involves assessing the condition of various components. These include:

• Fluids–Check the oil and power steering fluid levels using a dipstick to ensure all fluids, including oil and coolant, are at the proper levels. Inspect hoses and reservoirs for leaks, and look beneath the truck for any fluid stains, which could indicate leaks of fuel, oil, coolant, or brake fluid.

 

• Belts–thoroughly inspect all belts for pumps, alternators, and compressors to ensure they have no cracks or frays. Also, confirm they’re in place, giving no more than half an inch of play.

Other components to pay close attention to and ensure they’re securely mounted and in excellent condition inside the engine compartment include:

• Air compressor
• Radiator
• Alternator
• All pumps, including the water pump and power steering pumps
• Wiring

Step 2: Inspect the Front Parts of Your Commercial Vehicle

Front-of-vehicle inspection checklist items often include checking parts of your steering equipment, such as:

• Steering box–check the steering box to ensure it is intact. All connected hoses must be properly mounted without any power steering fluid leaks.
• Steering column or steering shaft–this should be straight.
• Drag link–check whether the rubber is well-greased and uncracked.
• Tie rod plus control arms–both must be straight.
• Pitman arm–confirm if all the caste nuts and cotter pins are present and secure

Step 3: Check The Front Suspension Systems

This includes examining the following parts:

• Spring mounts and hangers–ensure the spring mounts hold all spring hangers securely in position. Look for signs of cracks, wear, or breakage that might compromise their performance.
• Shock absorbers–check for splits, leaks, or dry rot within the rubber. Focus more on the sections where the top and bottom parts overlap because most leaks occur here.
• U-bolts–confirm if all bolts are secure and tightened around the springs and axle.

Step 4: Inspect the Brake System

Your commercial vehicle’s brake system is one of its most essential parts. Take your time to examine the entire brake system and perform several brake tests as outlined below:

• Brake linings and pads–the brake pad’s minimum thickness should be a quarter of an inch. Also, examine the linings for any debris.
• Air brake hose–ensure the line is properly connected and has no cuts or splits. You also want to confirm there is no air leak from the hose.
• Brake chamber–the brake chamber must be sealed completely. There shouldn’t be any audible air leaks.
• Brake drum–look at the color of the brake drum. If blue, it indicates excessive heat and might need further scrutiny.
• Hand brake–your system’s push rod should have an inch of play (not more) on either side and stand at 90 degrees when pulled.

You may need to perform a 9-, 7-, or 5-step brake test to inspect all brake components accurately.

Step 5: Examine the Lights and Reflectors

Inspect your lights and reflectors to ensure they’re all in perfect working condition and are clear of debris. The pre-trip inspection checklist items you’ll have to go through here include:

• High and low beams
• Brake lights
• Turn signals
• 4-way emergency flasher function
• License plate lights and running lights
• Reflector and DOT tape–ensure these are clean

Step 6: Inspect the Mirrors and Windshield

For this step, be keen to check the following:

• External mirrors plus mirror brackets–confirm if all external mirrors are clean and do not have any cracks or obstructions. They should also be attached to their mirror brackets firmly and well-adjusted to provide a proper rear view.

 

• Windshield–there shouldn’t be any cracks more than one inch. Also, run your windshield wipers to ensure they work and check that you have adequate windshield washer fluid.

Step 7: Conduct A Battery and Trailer Coupling System Check

This step involves inspecting the fuel tank, battery area, and trailer coupling system.

Ensure the battery is properly charged and that all key components, such as the exhaust system, suspension, electrical connections, and coupling mechanisms, are secure, undamaged, and free of leaks. Check that everything is in good working order before continuing.

Step 8: Check the Wheels and Tires

To perform wheel and tire inspections properly, check the inflation levels and examine the overall tire condition, particularly tread depth. Some of the most important sections you must pay attention to closely are:

• Driver and steer tires–ensure the tire tread is even, and the minimum tread depth on drive tires is 2/32”, while that of steering axle tires is 4/32”. The treads and sidewalls shouldn’t have cracks, bulges, or abrasions.
• Axle seals and hub seal–the axle seal and hub seal should be intact with no leaks
• Wheel rims–there shouldn’t be any illegal welds or unauthorized repairs on the rims.
• Dual spacing–ensure there’s enough space between any dual tires
• Lug nuts and bolts–these components should be intact in their lug bolt holes.
• Valve stem–confirm there are no audible air leaks in the valve stem.

Step 9: Inspect the Trailer

Inspect the trailer to ensure all key components, such as the headboard, doors, and mud flaps, are structurally sound and securely mounted. Check for any signs of damage, such as cracks, holes, bends, or missing parts, and ensure everything is intact and functioning properly.

Step 10: In-cab Inspection

Ensure all in-cab components are undamaged and functioning properly. This includes checking the steering wheel, seat belts, pedals, gauges, horns, fuse box, parking brake, heater, and defroster to confirm they are all in working order.

Step 11: Inspect the Rear of the Vehicle

Before connecting your truck to the trailer, inspect the rear end to ensure the brake chambers are undamaged, shocks and airbags are intact, and the driveshaft is clean, with no debris in the U-joints. Verify that the frame is sturdy, the fifth wheel is well-greased, and the fuel tanks are free of leaks.

Step 12: Check the Emergency Kit

Truck drivers must carry an emergency kit as required by DOT regulations, including a fire extinguisher, warning devices, and spare fuses. During your pre-trip inspection, confirm the kit is complete and functional, including items like warning flags, reflective triangles, a safety vest, first-aid kit, jumper cables, a flashlight, strobe lights, and extra batteries.

How often should I perform a pre-trip inspection?

According to FMCSA’s current regulations, all truck drivers must perform and log in at least one thorough inspection in their hours of service daily. The pre-trip inspection should happen before each haul. You must also complete an inspection report if you find any defects during your inspection.

Final Thoughts

Thorough pre-trip inspections and regular truck maintenance significantly reduce road accidents and enhance safety. By following the provided checklists, you can ensure your pre-trip inspections meet legal requirements.

For additional safety tips and to further improve your practices as a commercial truck driver, visit our blog. If you find defects that need immediate repair during your inspections, reach out to us for financing options. We offer affordable commercial truck repair loans to help you keep your truck in excellent condition without disrupting your business’s cash flow.

 

Truck suspension systems are crucial for a comfortable ride and keeping your cargo safe. Suspension systems also have a major impact on every other component of your vehicle, so maintaining truck suspension systems is essential for getting the most miles out of your semi-truck.

Here’s what you need to know about truck suspension and how to keep it in good condition.

Importance of a Heavy-Duty Truck’s Suspension

A truck’s suspension system is one of its most important components. Here are some of the major reasons heavy-duty truck suspension is vital.

Maintains Stability and Control

A heavy-duty truck’s suspension is essential for stability and control.

A vehicle’s suspension system keeps the truck balanced – especially when carrying heavy loads. Good suspension prevents the vehicle from tipping over during sharp turns or on uneven roads.

This is essential for driving the truck safely.

Improves Ride Quality

You need the truck’s suspension system for a smooth ride.

A quality suspension system absorbs bumps and rough patches on the road, ensuring a more comfortable ride for the driver and better protection for the cargo. This smoother experience is especially crucial for long trips, as it reduces driver fatigue.

Helps With Handling and Maneuverability

Having good shock absorbers improves road handling.

The suspension system allows the truck to respond quickly, which is important when navigating tight spaces or making sudden movements. Good handling and maneuverability are crucial for avoiding accidents and ensuring the truck can operate well in different conditions.

Absorbs Shocks and Vibrations

The suspension system absorbs shocks and vibrations from the road. This offers protection and keeps the truck’s components from wearing out too quickly. Shock absorbers also protect the cargo.

Optimizes Load-Carrying Capacity

A well-designed suspension system optimizes the truck’s load-carrying capacity.

Suspension systems evenly distribute the weight of the cargo, which helps prevent overloading any single part of the truck. A balanced weight distribution helps the truck carry more weight safely and extends the life of the truck by eliminating excessive stress on its components that could cause damage.

Truck Suspension System Types

Whether it’s a front or truck rear suspension system, there are some main types that heavy-duty vehicles use:

• Leaf spring suspension system: Known for its durability and simplicity, these systems consist of stacked metal layers. It’s more cost-effective to install leaf suspension systems, and these systems are ideal for handling heavy loads. However, leaf springs may offer a stiffer ride for heavy-duty vehicles.

 

• Air Suspension: Provides a smoother ride with air-filled bags instead of metal springs and offers adjustable ride height and stiffness for better handling and comfort. Air suspension systems are more expensive.

• Coil spring suspension systems: Coil spring suspension uses coiled metal springs to absorb shocks and provide a smoother ride. This offers better comfort and handling compared to leaf springs, but they’re not as good at handling heavy loads, so they’re not the most effective for heavy-duty vehicles.

Signs of Suspension Problems

Being able to identify suspension system issues early on is key to a well-maintained truck. Here are some critical signs to look out for.

The Truck Bounces as You Drive

If your truck bounces excessively and uncomfortably while driving, it usually means the shock absorbers or struts are worn out.

Tractor Drifting or Pulling During Turns

When your truck drifts or pulls to one side during turns, it either means you’ve got suspension problems or your heavy-duty truck alignment is off. Either way, you’ll need to get it checked out to avoid difficult and unsafe handling.

Uneven Tire Wear

Uneven tire wear is a common sign of suspension trouble. If the suspension isn’t distributing weight evenly, certain tires will wear out faster than others.

You’ll want to fix this issue as soon as you can before it causes greater damage to your vehicle.

The Truck Exhibits Body Roll

Excessive body roll when turning is a sign of weak stabilizer bars or worn-out shocks. This makes the truck feel less stable and can be dangerous during sharp turns – especially if you have a heavy load.

Your Truck Makes Unusual Noises

Unusual clunking or squeaking noises from your truck are never a good sign.

These noises often point to worn suspension components and generally mean serious issues that need immediate attention.

Front-End Diving and Rear Squatting

If the front end of your truck dives when braking and the rear squats when accelerating, it’s a sign that the shocks or struts are failing.

Vehicle Sits Lower

A truck that sits lower than usual may have broken or damaged springs. This can affect your vehicle’s handling load-carrying abilities.

Leaking Air

If your truck has an air suspension system, leaking air means you’ve got a major problem with the airbags or lines. If you hear air escaping, get it checked out straight away.

Difficulty in Steering

If your truck becomes hard to steer, it often means you’ve got suspension issues affecting the steering system. This can make driving difficult and dangerous.

Suspension Maintenance Tips

Keeping your truck suspension parts in good condition is simple by following the right maintenance routine:

• Inspect Regularly: Regularly check your suspension for signs of wear or damage. Look for any cracks, rust, or loose parts.

 

• Check Alignment and Balance: Ensure your truck’s wheels are properly aligned and balanced.

 

• Lubricate Moving Parts: Regularly lubricate any moving parts of the suspension to reduce friction and prevent wear.

 

• Monitor Fluid Levels: Keep an eye on fluid levels in hydraulic suspensions. Low fluid can lead to poor performance and damage.

 

• Replace Worn-Out Components: Replace any worn-out or damaged suspension components straight away to ensure the rest of your truck doesn’t get affected.

Conclusion

Maintaining a truck’s suspension is crucial for safety, comfort, and a long-lasting vehicle. Regular inspections and proper care keep your truck running smoothly and can help you avoid major issues further down the line.

Looking to purchase a new commercial truck? Then get started with Mission Financial Services and discover just how easy accessing truck financing can be.

Your engine is the lifeblood of your semi-truck. If it’s not working optimally, your vehicle’s performance decreases, and this can bring your trucking operations to a standstill.

Regular engine repairs keep your semi-truck engine running fine. But, sometimes, an engine overhaul is necessary to minimize losses from frequent maintenance and maximize your truck’s operational efficiency so your business thrives.

What does a semi-truck engine overhaul include, and when should you consider an overhaul? Here’s everything you need to know about semi-truck engine overhauling, including the best ways to approach the entire process as a fleet manager or owner-operator.

What Does a Semi-Truck Engine Overhaul Include?

Semi-truck engine overhauling is a comprehensive process for repairing or renewing all the essential parts of a semi-truck’s engine. The entire process aims to restore the engine to its optimal original functioning.Unlike engine repair, where mechanics check and maintain only the damaged parts, a complete semi-trailer engine overhaul includes four key steps:

• Disassembling and inspection. The first step involves removing the engine from the semi-truck, dismantling it, and inspecting each part for any signs of damage or wear. Any worn or damaged components get repaired or replaced, depending on the extent of the damage.
• Cleaning. After inspection and repair, qualified mechanics use specialized tools, including ultrasonic cleaning devices and high-pressure hoses to clean the engine thoroughly, removing any accumulated debris or dirt.
• Re-assembling. Once clean, mechanics put the engine back together with all the new or refurbished components.
• Testing. The last step of the semi-truck engine overhauling process involves testing to ensure the reconstructed engine operates correctly, according to the original equipment manufacturer’s recommendations.

When to Overhaul Your Semi-Truck?

Engine problems are expensive to repair. They also worsen with time and can undermine your safety on the road. Here are some tell-tale signs of common engine problems indicating your engine could use a complete overhaul

Crossing Mileage of 1,000,000 miles

If you haul heavy loads frequently and your truck’s engine is nearing the 1 million miles mark, consider a major overhaul as preventative maintenance. Most heavy trucks require mechanical attention to stay safely operational once they reach high mileage limits.

Reaching the 1 million miles mark is significant for any vehicle. Beyond this point, a large truck’s engine is more likely to develop issues such as vacuum and oil leaks if its components are not routinely maintained.

Performing a major overhaul at this stage is a wise move to revitalize your truck and keep operational costs low in the long run.

Rough Running Engine

Healthy engines are not silent. However, loud noises from under the hood signal your semi-trailer needs service. Unfamiliar noises indicate problems with various parts of your engine.

For example, a whistling sound may mean the hose on your semi-truck engine’s cooling system has cracks. A whirring sound signals problems with your existing engine belts, and continuous tapping, clicking, or ticking shows your valves or pistons aren’t working well.

The most cost-effective way to handle rough-running engine problems is to conduct a major overhaul when you hear an unusual engine noise. A proper semi-truck engine overhaul will eliminate all the rough-running engine issues at once.

Large Metal Particles in Filter Pleats

If you conduct an oil filter test during your regular maintenance activities and notice large metal particles in the filter pleats, an engine overhaul may be necessary to prevent catastrophic failure.

Often, such metal shavings indicate wear and tear on parts of your engine that undergo a lot of friction, like the camshafts, bearings, pistons, and rods. You may need the help of expert technicians to perform further lab analyzes and inspections to assess the gravity of the problem.

Foam on the Dipstick

A light-colored form on the dipstick shows there’s water in the oil. If this is so, chances are your gasket head is leaking. Or, your engine block has a crack. It’s advisable to perform an engine overhaul to repair the problem on time and avoid further issues.

Decrease in Oil Viscosity

Decreased oil viscosity is a sign of oil dilution, which lowers engine efficiency.  When your oil viscosity is too low, its sealing performance decreases, and the cylinder leaks easily. This reduces the engine’s power and can cause the exhaust gas to get into the crankcase, leading to more costly repairs.

To test your oil’s viscosity, put an oil drop on a piece of cardboard and watch how quickly it spreads. The faster it spreads, the more dilute it is. And, the more diluted the oil is, the more wear your vehicle will experience and the quicker you’ll need engine repair.

Burning Oil Smell

A burning oil smell is a sign your engine oil is overheating. If you notice this, take your truck to a qualified mechanic with the right tools for proper engine repair.

Cylinder Compression Is Low

Compression loss occurs because of leaks in one or more of your engine’s cylinders. This causes misfiring and decreased performance. The best solution is to replace all the leaking components. These could be the piston, head gasket, camshaft, or valves. And there’s no better approach than a complete engine overhaul to ensure all parts are in the best condition.

Exhaust Emitting Heavy or Blue Smoke

Blue or dark gray smoke from your exhaust pipe means your semi-truck engine is burning oil with the fuel in the combustion chamber. It indicates excessive wear on some engine components, including the piston rings, PCV valves, and valve seals. Serious engine work involving various parts replacement is necessary to improve your engine’s performance.

Ways to Carry Out a Semi-truck Engine Overhaul

There are two main approaches to semi-truck engine overhauling:

1. Seek Commercial Engine Overhaul Services

You can take your semi-truck to a repair shop where qualified mechanics and technicians will work on it. There are two types of repair shops to consider: certified and non-certified.

Certified repair shops offer top-notch engine services using original, high-quality systems and parts. While the cost of engine repairs at these shops is higher, the investment is worth it for the quality and reliability.

On the other hand, non-certified shops provide cheaper repairs, but the risk is greater. These shops don’t adhere to the same standards as certified ones and may use subpar parts and offer inferior services.

2. Purchase Overhaul Kits and Do-it-yourself

Most fleet managers prefer seeking professional help from commercial semi-truck engine overhaul services. But as an owner-operator, you can purchase an overhaul kit and do it yourself, especially if you’re comfortable working with engines or know someone well-versed with the equipment and overhaul process. It’s a more cost-effective solution.

Final Thoughts

Remember, preventative maintenance will always be better than cure when handling your semi-truck’s engine. A well-maintained engine saves you from costly repairs, making a huge difference in your profit margins and overall business operations.

Consider incorporating an annual engine overhaul into your regular maintenance schedule once your truck surpasses the 1 million mile milestone. However, always consult with a trusted certified mechanic to determine if an overhaul is necessary, as engine aging varies. Some engines may continue to run smoothly beyond the 1 million mark, especially if they have been well-maintained.

If you need help financing your semi-truck repairs, get in touch with us. We offer affordable commercial truck repair loans and can customize our options to suit your specific situation.

 

If you’ve just invested in a new commercial vehicle, then you’ll probably ask, “How many miles can a semi-truck last?”

The short answer is this: the better you take care of the truck, the longer it will last. And if you’re careful, you might even get your truck to the million-mile mark.

How Long a Semi Truck Lasts

A well-maintained semi-truck typically lasts around 750,000 miles and can even reach a million miles with good maintenance. This is impressive when compared to regular cars, which often start having problems after 200,000 miles.

Given that they usually drive about 45,000 miles a year, you can expect a semi-truck to last around 15 years. The average semi-truck should last somewhere between 500,000 to 750,000 miles.

Although, the lifespan of a semi-truck depends on how you maintain and keep the truck running smoothly.

Highest Mileages of a Semi Truck

Some semi trucks have impressively high mileage, with many trucks reaching almost 2 million miles.

With proper maintenance and care, semi trucks can last significantly longer than the average lifespan, which shows just how durable and reliable they are for long-haul transportation.

Factors that Affect How Long Semis Last

How many miles semi-trucks can do depends on various factors. Keep these things in mind if you want to get the best possible lifespan out of your long-haul truck.

Operating Environment

The environment where your truck operates significantly affects how long it will last.

Trucks that operate in harsh climates with extreme temperatures, heavy snow, or frequent rain can experience more wear and tear. The ice road trucking industry is one example of trucks that experience extra strain under harsh conditions.

Trucks that drive mainly on highways tend to last longer than long-haul trucking vehicles frequently navigating rough or unpaved roads.

Maintenance and Preventive Care

Regular maintenance and preventive care are crucial for extending a semi truck’s lifespan.

Routine checks, regular oil changes, and replacing worn-out parts can prevent major issues.

Trucking companies need to perform consistent preventative maintenance to avoid breakdowns and keep their trucks in good working condition for many years.

Driver Experience

The longevity of a semi-truck often comes down to experienced drivers.

Skilled drivers know how to handle vehicles more efficiently. They avoid aggressive driving and recognize early signs of potential problems.

Proper driving habits reduce strain on the truck and help prevent unnecessary damage.

Road and Traffic Conditions

Road and traffic conditions play a vital role in how long a semi-truck lasts. Trucks that mainly travel on smooth, well-maintained highways experience far less stress compared to trucks that drive on bumpy or poorly maintained roads.

Heavy traffic can also cause more stop-and-go driving, which leads to increased wear and tear.

Type of Cargo Transported

The type of cargo that a truck carries can affect the vehicle’s durability.

Heavy cargo puts more strain on the engine, suspension, and brakes. Consistently carrying heavy loads can lead parts of the truck to wear faster. On the other hand, lighter or less demanding cargo results in less stress on the truck.

Diesel Engine vs Gasoline Engine

Diesel engines typically last longer than gasoline engines in semi-trucks.

Manufacturers build diesel engines to handle higher levels of stress and typically make them more sturdy.

They’re also more fuel-efficient and can better endure the rigors of long-distance hauling. This is why they’re a preferred choice for heavy-duty trucks.

Signs Your Truck is Reaching the End of its Lifespan

While we’d all love our vehicles to hit the million-mile mark, it’s important to know when it might be time for a truck replacement.

Here are some key symptoms of a truck that’s nearing the end of its life.

Frequent Breakdowns

If your semi-truck is constantly experiencing breakdowns, it may be near the end of its lifespan.

Constant mechanical issues are a sign of worn out key components that need replacing. Frequent breakdowns that disrupt your schedule and lead to high repair costs suggest it might be time to invest in a new truck.

Costly Repairs

When repairs become more frequent and more expensive, it’s a sign that your truck is aging.

Constantly having to fix major components like the engine, transmission, or brakes can quickly add up. At a certain point, the cost of these repairs might outweigh the value of the truck.

Decreased Fuel Efficiency

If you notice a big drop in the fuel efficiency of your truck, it’s a sign that the vehicle is wearing out.

As engines age, they often become less efficient and consume more fuel. So, a major decrease in fuel economy often suggests that your truck is reaching the end of its useful life.

Engine Problems

Constant engine problems are a clear sign that your semi truck might be on its last legs.

Issues like frequent stalling, power loss, or difficulty starting are signs that the engine might be failing. Engine repairs can be seriously expensive, and purchasing a new truck often makes more sense.

Unusual Noises

Unusual noises, such as knocking, rattling, or grinding, could be signs of serious issues within your truck.

These sounds often signal problems with the engine, transmission, or other critical components. If these noises continue after regular maintenance, your truck may be approaching the end of its operational life.

Excessive Smoke

Excessive smoke from the exhaust can be another big warning sign of engine trouble.

Blue, black, or white smoke can indicate burning oil, fuel system issues, or coolant leaks. If your truck emits a lot of smoke, it’s a sign that the engine isn’t functioning properly.

Structural Damage

Visible rust and structural damage are serious concerns for truck owners.

Rust can weaken the frame and other vital parts of the truck, compromising its safety and durability. If the structural integrity of the truck is compromised, it might be more cost-effective to replace it rather than repair it.

Tips for Extending the Life of Your Semi Truck

Whether you travel short or long distances, here are some key things to keep in mind to avoid premature wear and keep your truck in good condition.

Regular Maintenance

Regular maintenance is essential to keep your semi truck in top condition.

Routine oil change, filter replacements, and brake inspections are simple ways to keep your truck running longer. Quickly address any issues to prevent bigger, costly problems down the road.

Using the Right Fuel

Always use the recommended fuel for your semi-truck. High-quality fuel can improve engine performance and efficiency. It also helps reduce engine wear and prolongs the life of your truck.

No Overloading

Exceeding the weight limit of your truck puts extra stress on the engine, suspension, and brakes. Stick to the recommended load capacity for longer-lasting operation.

Careful Driving

Avoid aggressive driving, sudden stops, and rapid acceleration. Smooth and steady driving reduces wear and tear on the truck’s components.

Final Thoughts

Semi-trucks are built to last a long time. However, they need proper maintenance and care if they’re going to reach their full potential. Luckily, this is pretty easy to get right.

Ready to invest in a long-lasting semi-truck? See how we can help you get started on accessing the financing you need for a commercial vehicle.

Owning a commercial truck requires plenty of regular maintenance.

If you follow a detailed truck maintenance checklist, you’ll ensure you do all the necessary jobs to keep your vehicle in good running order. Neglect these simple maintenance checks, and it could result in major issues and expensive fixes further down the line.

To help keep your vehicle in top condition, we’ve covered everything your truck maintenance checklist should include in the guide below.

What is a Commercial Truck Maintenance Checklist?

A commercial truck maintenance checklist is a guide that truck drivers or fleet managers go through to ensure trucks are in safe working condition. It’s essential to go through a routine maintenance checklist on your vehicle regularly to keep your truck in good working order.

A commercial vehicle maintenance checklist should include daily, weekly, and monthly tasks, such as checking fluid levels, inspecting tires and the braking system, testing lights and the electrical system, and examining the engine and transmission. You should also include regular maintenance tasks like oil changes, filter replacements, and brake inspections on your list.

A maintenance checklist helps prevent breakdowns, extends the truck’s lifespan, and ensures compliance with safety regulations. Keeping up with this checklist can help you reduce repair costs and improve your vehicle’s overall performance.

Types of Commercial Truck Maintenance Checklists

Here’s a breakdown of the various checklists that exist for managing commercial vehicles.

Preventative Maintenance Checklist

Preventative maintenance involves regular, planned servicing to keep trucks in good condition. This type of maintenance helps you catch issues early to prevent breakdowns and expensive repairs.

Your preventive maintenance checklist should include tasks like oil changes, tire rotations, brake inspections, and fluid checks. Checking the engine, transmission, and exhaust system is also important.

Demand Maintenance

Demand maintenance needs to be done when a specific issue arises. This includes things like fixing a flat tire, replacing a broken headlight, or repairing your entire brake system.

Unlike preventative maintenance, it’s reactive – fixing problems as they happen. While it’s essential to fix issues immediately, relying only on demand maintenance can lead to bigger maintenance problems and greater repair costs.

Crisis Maintenance Checklist

Crisis maintenance happens during an emergency or unexpected breakdown.

These maintenance tasks include things like sudden engine failure, brake failure, or any other critical issues that need immediate attention. Crisis maintenance can be very expensive and often happens because of a neglected preventive maintenance checklist.

Maintenance Record Checklist

A maintenance record checklist tracks all the maintenance activities you do on your truck.

This includes details like service dates, any details of the work done, and any parts you’ve replaced.

Essential Checklist Items for Your Commercial Truck

For proper maintenance to happen, it’s essential that you run detailed vehicle inspections that cover all the important parts of your vehicle. To do this, here’s what your checklists should cover.

Mechanical Technical Inspection

Conduct a thorough examination of the engine for any visible leaks, unusual noises, or performance issues. Check the condition of the belts and hoses – they should be free of cracks and wear and tear.

Ensure the air filter is clean and replace it if it’s dirty. Look at the spark plugs, fuel filters, and fuel injectors to see if they’re functioning correctly.

Inspect the transmission for any signs of leaks, which can indicate seal or gasket issues. Ensure the transmission fluid is at the correct level and is not discolored or burned.

You’ll also want to examine your exhaust system for any signs of rust, holes, or loose connections. Inspect the suspension system, including shocks and struts, for wear. Check the steering system, including the power steering pump and steering linkage, for proper operation.

Fluids and Oils Inspections

Regularly check the power steering fluid level and top it off as needed. Look for any leaks around the power steering pump, hoses, and reservoir.

Use the dipstick while the engine is running to inspect the transmission fluid. The fluid should be clear and red, not brown or burned-smelling. Regularly changing this fluid is essential.

Make sure you also regularly check the engine oil level and condition. Inspect the coolant level in the radiator and overflow tank to ensure it’s clean and at the correct level. Ensure your brake fluid is also at the right level and not contaminated.

Brakes Inspection

It’s essential that you thoroughly inspect your brake system, starting with your brake pads and shoes. They should be thick enough and show no signs of excessive wear.

Check the brake rotors and drums for any scoring or uneven wear, which can affect braking performance. Ensure the brake lines and hoses are free of leaks, bulges, or cracks.

Test the brakes by pressing the pedal – it should feel firm and not spongy.

Lights Inspection

Always check all of your vehicle’s exterior lights – including headlights, taillights, brake lights, turn signals, and emergency flashers, to ensure they’re working correctly. Replace any burned-out bulbs immediately.

It’s also a good idea to clean the light lenses for maximum visibility. Inside the truck, check the dashboard lights and ensure the truck’s electrical system is functioning properly.

Wheels and Rims Inspection

Inspect your tires using a tire gauge to check that they’re properly inflated. Under-inflated or over-inflated tires can affect your vehicle’s handling and fuel efficiency.

Check the tread depth using a tread depth gauge. Replace tires with low tread depth to guarantee good traction. Look for any signs of damage, such as cuts, bulges, or punctures, which can lead to tire failure.

Interior Inspection

You should also regularly check the condition of your seats and seat belts.

Seats should be secure and not excessively worn, while seat belts should latch properly and show no signs of fraying. Inspect the dashboard for any warning lights that might indicate a problem.

All of your vehicle’s gauges, like the speedometer, tachometer, fuel gauge, and temperature gauge, need to be working correctly. Test the air conditioning and heating systems to ensure they’re working properly.

Windshield, Back Windows, and Mirror Inspection

Inspect your windshield for any cracks or chips that can obstruct your vision or worsen over time. Cracked windshields could result in pretty major maintenance costs if left for too long.

Ensure your windshield wipers are in good condition and replace them if they streak or skip.

Mirror inspection integrity is also essential. Check the back windows and side mirrors for any damage that could affect visibility.

Weather Conditions and Truck Maintenance

Having a specific truck maintenance checklist for different weather conditions helps keep your vehicle in the best possible condition for whatever environment you’re driving in.

Cold Conditions

In cold conditions, you need to fully charge and maintain your truck’s battery in good condition, as cold weather can weaken it.

Check the antifreeze level to prevent the engine from freezing. Make sure your tires have enough tread and proper inflation, as cold air can reduce tire pressure. Use winter-grade oil and use the right wiper blades if you’re driving in snow and ice.

Your defrosting system will need to be working properly to maintain clear visibility.

Hot Conditions

Hot conditions require enough coolant levels to prevent the engine from overheating.

Ensure the radiator and cooling system are clean and working properly. Inspect the tires for proper inflation, as hot air can increase tire pressure and risk blowouts.

You may want to monitor the brakes closely, as high temperatures can affect brake performance.

Wet Conditions

Your windshield wipers and washers need to be in good working order when driving in wet conditions.

Check your tire tread depth for good traction on wet roads. Inspect the brake system to ensure it is responsive, as wet conditions can affect braking efficiency. It’s also good practice to clean the truck’s undercarriage regularly when driving in wet conditions to prevent rust and corrosion from road salt and moisture.

Dry Conditions

Dust can be a major issue if you’re driving under dry conditions.

Regularly check and replace your air filters if you’re in a dusty environment. Inspect the tires for signs of dry rot or cracking, which can happen when exposed to heat and dryness.

Check that your brakes are free from dust buildup. You should also regularly clean the exterior and undercarriage of the vehicle to prevent dust and dirt from causing damage. Keeping the truck well-lubricated can also prevent parts from drying out and malfunctioning.

Final Thoughts

Maintaining commercial vehicles is an ongoing process. However, it’s essential that you perform regular inspections and maintenance checks. Otherwise, minor issues could turn into much bigger problems further down the line.

Something as simple as following a basic preventive maintenance checklist will keep your vehicle in good condition and prolong its lifespan. This can save you a lot of money on emergency repairs.

Are you looking to purchase a new commercial vehicle? Then you’ll need to have the right commercial vehicle financing solution available. Get in touch with us at Mission Financial Services – we make it easy for all truck drivers to access the financing they need (even if you have a poor credit score).