Heavy-Duty Fleet Oil & Fluid Repair in North Carolina

Changing your oil and fluids on a regular basis is very important. Over time, the fluids that lubricate and absorb heat break down and become less effective. If left unchecked, this could lead to excess amounts of heat and friction that could cause critical harm to your heavy-duty vehicle. For example, if you don’t change your engine oil, it will eventually break down and fail to lubricate your moving components properly. When this happens, the amount of heat produced by your engine is no longer manageable for your coolant system. This could lead to a wide array of serious issues like blown head gaskets, seized pistons, and more. 

Components That Commonly Require Routine Oil or Fluid Changes

Engine

Your engine needs to be lubricated at all times in order to avoid catastrophic failure. Since diesel engines operate at extremely high temperatures, your engine oil will likely break down faster than in a regular passenger car. We highly recommend changing your engine oil in accordance with your manufacturer’s recommended serval intervals. Also, keep in mind that the lifespan of engine oil is generally reliant on the type of oil, whether it be regular, a blend, or synthetic. 

Your engine also requires routine coolant flushes. Fortunately, coolant lasts a lot longer than engine oil, meaning it doesn’t need to be replaced nearly as often. Be sure to keep an eye on its quality, though. Is it boiling? Is the level dropping? Both are signs of coolant that needs to be changed. 

Transmission

Your transmission has a series of gears that are always moving and, as such, need to be lubricated at all times. Fortunately, transmission fluid doesn’t have to be changed nearly as often as engine oil, for your transmission produces significantly less heat. 

Differentials

Similar to your transmission, your differential also has gears that are moving at all times, and they, too, need constant lubrication. Fortunately, differential fluid doesn’t have to be changed nearly as often as engine oil, for your differential produces significantly less heat.

Need to schedule a Repair?
Call us today!

Service Request

What Our Customers Are Saying

We strive to provide the best fleet repair and maintenance services for our valued customers in North Carolina.

More Fleet Repair for Trucks

Axle

Are you looking for a heavy-duty repair shop that does axle work? If so, you’ve found what you’re looking for! We here at National Fleet Management have a vast array of heavy-duty axle services that are bound to meet your every need. Call today to schedule an appointment.

Body Work

Are you looking for a shop that does body work on heavy-duty trucks? Well, you can stop looking, for we here at National Fleet Management offer a wide range of bodywork services. From body panels to roofing and everything in between, National Fleet Management is the place to be.

Brake

Are you looking to get your heavy-duty brakes serviced? Whether you use an air-based setup or more traditional fluid systems, you’ll find the services you need here at National Fleet Management. Contact us today to book an appointment.

Coolant Systems

Are you in need of coolant system repairs? Maybe the engine in one of your trucks is overheating, and you can’t figure out why. Not to worry! We here at National Fleet Management are coolant system experts. We maintain and repair coolant systems of all kinds on almost a daily basis! Call today to book an appointment.

Diagnostics & Electrical

Are you having electrical problems? Are you looking for a heavy-duty shop to fix those issues? Well, you can stop looking! We here at National Fleet Management are diagnostics experts! We’ll have any and all electrical issues sorted out before you know it! Call today to book an appointment for service.

Drivetrain

With a full roster of technicians and over a decade of experience in the heavy-duty repair industry, National Fleet Management has the services you and your fleet deserve. For all your drivetrain needs, give us a call, and we’ll book you an appointment.

EGR & DPF

Are you looking for a shop that works on emissions control systems? Well, you’ve found one! We here at National Fleet Management are emissions control experts. We do everything from EGR repairs to catalytic converter replacements. Call today to book an appointment.

Engine Conversion, Rebuild & Repair

National Fleet Management is a heavy-duty repair shop that does engine rebuilds, repairs, and conversions of all kinds. Whether you’ve blown a head gasket or want to swap your engine out entirely, you can rest well knowing our technicians have your back. Call today to book an appointment.

Exhaust Systems

Whether it be exhaust leaks or damaged heat shields, you’ll be able to find high-quality repair services here at National Fleet Management. With over a decade of experience in the heavy-duty repair industry, we’ve got you covered. Contact us today to book an appointment.

Express Lube

Our express lube services here at National Fleet Management are designed to fulfill the oil and fluid needs of any preventive maintenance regimen. Whether you need an engine oil change or a new transmission fluid, our express lube technicians will have your fluids changed in a jiffy!

HVAC Systems

Is your HVAC system struggling to keep up with North American weather? Maybe it doesn’t blow cold enough in the summer or doesn’t heat up enough in the winter. Here at National Fleet Management, we’ve got a wide selection of services that are sure to meet your every need.

Suspension

Do you want to get your heavy-duty truck’s suspension repaired or maintained? Well, looks like you’ve come to the right place! Here at National Fleet Management, we offer suspension services of all kinds. Whether you need new bushings or repaired shock absorbers, we’ve got your back.

Transmission & Clutches

Are you looking for transmission repair and maintenance services? Well, if so, you’re in luck! Here at National Fleet Management, we offer transmission services of all kinds. Whether you need a simple fluid change or a large repair, you can count on us to have your back.