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

Compression testing can reveal internal engine problems that a visual inspection won't. The easiest way to compression-test an engine is with the engine installed in a running car.

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

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 ...

Any VW Beetle tuneup should start with a compression test, as this can reveal issues with improperly adjusted or malfunctioning valves or damaged engine components.