Old diesel trucks never cease to become even more amazing to experience and enjoy as they grow older over the years. From ‘94 7.0-liter Ford Powerstrokes to ‘88 Dodge 12 Valves, the truck models of the past bear a ruggedness to them that contributes to their overall character unlike any other. This is what makes them much more collectible these days.

If you own an old diesel truck, then you’re probably familiar with the appeal of the characteristic styling and driving experience that it bears. Now, as great as it may be to have a piece of automotive history in your garage, however, there’s one question that may cross your mind:

“Am I doing everything that’s necessary to keep it on the road?”

Fortunately, keeping an old diesel truck as roadworthy as possible doesn’t have to be a painstaking process that involves throwing money out of the window. In fact, it’s quite the opposite.

If you want to hit the road with your classic diesel truck and make sure that it serves you well on any drive in the long run, here are three tips that can help it stay in tip-top shape:

1. Invest in quality oil and have it changed on a regular basis

Out of all the different aspects that make classic diesel trucks so unique, the most noteworthy one that any driver should know is that some good oil and a routine change go a long way in keeping its engine primed for performance.

As opposed to regular car engines today that come with many parts that make the entire process of maintaining performance much more complicated, old Cummins, Duramax, and Powerstroke engines are actually straightforward. By simply following your manufacturer’s recommendations, adding in the specified type of oil, and changing it regularly, you can easily keep your old diesel truck running smoothly for many years.

2. Keep an eye out for your engine wear items

When it comes to keeping an old workhorse driving the same way it came out of the factory, it’s important to note that engine wear items play a significant role in how long everything can run smoothly and safely.

Various parts, such as pulley bearings, tensioners, serpentine belts, and water pumps, have specific functions that contribute to the overall performance of a truck. Although these parts may seem quite minor at first, they can make the difference between your truck’s ability in making it to 150,000 miles on an interval or barely making it to 50,000. This is why you should make sure that you get your wear-prone parts checked regularly!

3. Service your truck regularly

If there’s any key to maintaining the longevity of your old diesel truck that would guarantee longevity the most, it would definitely be having it serviced regularly. With a regular maintenance service, you’ll be able to keep your truck in pristine condition by carrying out regular processes, such as spark plug checks, wheel alignment, and soot deposit removals. All these checks will work best for the longevity of your vehicle as well!


When it comes to keeping an old diesel truck running smoothly for many years of happy use, it’s important to note that what you do to keep it in great shape will make a significant difference in its lifespan!

We’re a diesel truck parts specialist that supplies parts for Dodge, Ford, and Chevy truck models in Montana and all of America. If you’re looking for ways to improve the performance of your truck, check out our wide range of parts selections today!