With a simple diesel engine compression test, it is possible to spot compression problems before they get worse. Here’s information on these tests and how to decide if it is time to perform one.

Is your engine underperforming? Our expert shares how a diesel engine compression test could provide the diagnosis.

We take a close look at what engine compression means, what it does, and how to test it.

Testing a car engine for a leak, converting test readings into a percentage and reporting the results of the test to the manager.

Read on as we list ways to figure and measure your compression ratio, total piston volume, and choosing the best pistons. Read on for more details along with photos only in Mopar Muscle Magazine ...

A professional mechanic can determine low engine compression by carrying out a compression test using special tools.

Not all braking systems on semis have to be loud to be effective. Exhaust brakes make a fraction of the noise that compression brakes do, here's how they work.

Some engines use a spark to ignite their fuel, and others rely on compression. What does all of that mean? And how do the two kinds of engines differ?