If you own or operate a fleet or commercial truck, you’re probably pretty familiar with diesel vehicles. But why are diesel engines predominantly used in commercial vehicles, and where did they start?

On gas engines, the fuel delivery system is pretty simple - an electric pump draws gas from the tank, and pushes it to the injectors. Diesel systems are a little more complex. At Melvin's Auto & Truck Repair in St Augustine, FL, we like to keep you informed about what’s on your truck, how it works, and how to maintain it, so you stay reliably on the road.

When you think about diesel engines, you probably think about large trucks and machinery, and maybe a few oddball cars over the years.  But how long has diesel really been around, and why is it used the way it is today? Melvin's Auto & Truck Repair in St Augustine, FL has the answers you need to become more in-tune with your diesel truck and engine. 

No matter what type of fleet vehicles or commercial trucks you maintain, the fuel system on your diesel is an integral part of keeping you on the road. Gas systems are pretty simple - there’s basically just a pump that pushes gasoline to the injectors. Diesels are a bit more complicated.

Your fuel system is comprised of a variety of parts, each tasked with keeping your engine running strong - Chevy, Ford, and Ram all have small differences, and diesel systems have changed over the years with innovation in the field; however, the fundamentals haven’t changed. At Melvin's Auto & Truck Repair, our technicians are familiar with the differences between models and generations, but for the intents and purposes here they aren’t necessary to know. Here’s an overview of the major components you’ll find in most diesel fuel systems.

Diesel engines are known for their reliability - that’s probably at least partially why you bought one. However, like all things, diesels and their components wear out eventually. Fortunately, the technicians at Melvin's Auto & Truck Repair in St Augustine, FL have you covered. Here are some fuel system issues to watch out for.

Now that you’ve got an idea of the components that make up a diesel system, and what they do, understanding how the system works in a more cohesive way isn’t difficult. At Melvin's Auto & Truck Repair in St Augustine we understand what’s going on in your fuel system while your diesel engine is running.

Good diesel technicians and shops that service diesel engines are hard to come by. At Melvin's Auto & Truck Repair in St Augustine, FL, diesels are our specialty. There are many reasons to have diesel truck maintenance performed by diesel specialists - here are just a few.

When it comes to installing new tires on your Dodge, Chevy, or Ford diesel pickup, you want it done right the first time. Our technicians have the equipment necessary to get you cruising smoothly down the road in no time.

There are a wide variety of tires available for your diesel truck, no matter what sort of pickup you drive. The climate, the terrain you drive on, and how you drive will determine which tire is best for you. Here’s a short list of common truck tire types.

Every car, truck, van, and SUV on the road today has headlights. However, you've probably noticed an increase in different types of headlights in more recent years - gone are the days where every vehicle on the road had the same bulb. Here is some information on headlights, from Melvin's Auto & Truck Repair in St Augustine, FL.

Whether you drive a Ram, Chevy, or Ford diesel pickup, our expert technicians have the know-how you need - from trivia to engine rebuilds, we’ve got you covered.

At Melvin's Auto & Truck Repair in St Augustine, FL, it’s important to us that your car, truck, or SUV is ready for any condition. Coolant flushes are an important part of getting your vehicle ready for winter - here’s why.

Increasingly, technology in automobiles is becoming more sophisticated, and more and more systems have become reliant on electronic control modules to operate. At Melvin's Auto & Truck Repair in St Augustine, FL, we have the trained technicians and the equipment necessary to deal with issues that arise as a result of these components.

The engine in your Chevrolet, Dodge, or Ford diesel pickup is the heart and soul of your truck. At Melvin's Auto & Truck Repair in St Augustine, FL, we repair, rebuild, and replace engines with quality parts and builds, keeping your truck on the road for years to come.

We know how important a good exhaust setup is on a diesel truck. Whether you’re powered by a Cummins, a Duramax, a Powerstroke, or something else, your exhaust plays a major role in performance, engine sound, and even aesthetics. At Melvin's Auto & Truck Repair in St Augustine, FL, our professional mechanics have the equipment, knowledge, and ability necessary to get your exhaust in shape.

Is your diesel having issues starting up? Do you hear a knocking noise? Is there blue colored smoke coming from your engine? Don't ingore the signs, those could all be signs of engine failure. One of the leading issues that lead to diesel engine failure is fuel contamination. Fuel contamination comes in different forms, but always has the same result - engine trouble and fuel system failures. Here’s what you need to know about fuel contamination with diesel trucks, from Melvin's Auto & Truck Repair in St Augustine, FL.

The fuel system is an integral aspect of any combustion engine, but it’s particularly important on diesel trucks. Your Ford, Dodge, or Chevrolet pickup requires a perfectly functioning fuel system, devoid of buildup, leaks, and debris, to provide you with the most powerful and efficient engine performance possible. At Melvin's Auto & Truck Repair in St Augustine, we understand that fuel system flushing is an essential process in maintaining a properly functioning engine.

Performance chip installation is one of the perks of diesel truck ownership. At Melvin's Auto & Truck Repair in St Augustine, FL, our mechanics can professionally tune and install a chip for any application, whether you drive a Cummins, Powerstroke, Duramax, or otherwise.

Glow Plugs are an essential component of your diesel engine. However, a faulty glow plug can go unnoticed or be neglected for quite some time; your truck will still start and run, so it’s an easy issue to overlook. At Melvin's Auto & Truck Repair in St Augustine, we want you to know what to look for, and why you should be concerned with a bad glow plug.