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.

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.

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 ...