A compression test is to determine how much pressure the engine makes, and a leakdown test measures its ability to hold pressure.

A crank compression test can tell you a lot about an engine and we will be going over the numbers. - Super Chevy Magazine ...

If your car is getting older or you feel like you may be losing some engine power, a compression tester can help sort out the problem.

A compression test reveals the condition of your engine's valves, its valve seats, and piston rings and whether these parts are wearing evenly.

While an engine compression tester may not be the most common tool in a mechanic's garage, they can be very useful, especially for older cars.

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 dyno test a low compression Ford 5.4L against a high compression variation and see which makes more power - Muscle Mustangs & Fast Fords ...

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 ...

Infiniti’s variable compression engine is a huge technological leap Clever new tech means changing compression ratios (and displacement) on the fly.