With more advanced engine metallurgy and design, and the demand for increased fuel efficiency and lower emissions, engine operating temperatures have increased more than 40 F in the last 50 years.

As engines get very hot, coolant helps distribute heat to help prevent overheating and engine damage. It also adds antifreeze protection and acts as a lubricant for some of the engine’s components. If ...

A John Deere dealer's mistake on a 700K dozer has led to a significant coolant leak. After multiple unsuccessful repair attempts, the C&C team investigates and identifies the root cause: a leaking ...

Q:I have a 2002 Ford Ranger with 218,000 miles. Lately, after my truck is warmed up and I shut it off, it builds pressure in the overflow reservoir and bubbles out of the lid. At first, I thought it ...

How hot does your engine run? Is it on the cool side? The hot side? Where should it be? How big of a radiator should you run? Antifreeze or water? Tap or distilled? Do you need a pressurized cooling ...