What is an engine block heater and how does it work?

If you live in a region with below freezing temps, you may have heard of engine block heaters. Here's what they are, the ...
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How the thermostat regulates engine temperature

Engineers design modern engines to run in a narrow temperature window where power, efficiency, and emissions all line up. The ...
Hot Rod

Waterless Engine Coolant and Cooling System Basics

Author's note: In the Jan. '09 issue of HPP, the technical article "Keep a Cool Head" described installing Evans NPG coolant in a Pontiac engine, along with other modifications. Due to the varied ...
Cars

How to Check Your Car’s Engine Coolant

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 ...