Curious to learn just how healthy or unhealthy your engine is? Get yourself a compression tester and find out. See the best compression testers here.

Compression test kits do just what they say: measure the ability of each cylinder of your engine to combust the fuel/air mixture without losing any of the resulting energy.

In Two Stroke Spark Ignition engines the thermal efficiency increases with increase in compression ratio. Also, with higher compression ratios the lean burning limit increases because of the reduction ...

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.

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

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

We walk you through a compression test, a great way to determine the condition of your valves and piston rings.

ABSTRACT A Dual Piston Variable Compression Ratio (VCR) engine has been newly developed. In order to ensure the strength of the Dual Piston, the design guidelines were established. There are two ...

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.

But too high a ratio causes knocking—premature detonation of fuel-air mixture during the engine's compression stroke caused by high cylinder temperatures.