Maintaining engine cooling system components is critical not only to avoid breakdowns, but also to ensure the truck is operating effectively throughout its lifecycle. Experts weigh in on what to check ...

Your vehicle's engine cooling system is one of its most critical components. Its primary responsibility is to cycle coolant — which is a 50/50 mixture of water and antifreeze — through your engine to ...

The saying goes something like this: “When you take care of something good, that something good takes care of you.” The same can be said for taking care of maintenance on a heavy duty engine. Whether ...

Penray says its Pencool 3500 Small Engine Cooling System Treatment with Stabil-Aid is the first coolant maintenance additive designed exclusively for smaller engines such as refrigerator units, diesel ...

When you cut to the basic principles of heavy-duty trucks it comes down to return on investment: maximum mpg, meeting emissions requirements and the truck running at optimum conditions and ...

With the odometer approaching half a million miles, it’s understandable that Project Jake, our 1993 GMC C1500, needs some upkeep from time to time. Our water pump gave up the ghost a few days ago, and ...

Cooling System Performance Under Desert Conditions. A vehicle’s cooling system regulates engine temperature by circulating coolant through the engine block and releasing heat th ...

Along with power, internal combustion engines make heat. They actually create so much heat that if it isn’t adequately channeled away, it can potentially damage an engine beyond repair. To solve the ...

Internal combustion engines — including those that run on diesel fuel — rely on various systems, accessories, and electronics to keep the pistons moving and your wheels turning. Of those systems and ...

I had the radiator serviced on my car; just preventive maintenance. I noticed on the repair invoice I was charged for a cooling system additive.

Do coolant leak stop products actually work, and which are the best radiator stop leaks you can get in 2026?

While new vehicles may have a “lifetime” coolant, there are some exceptions.