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

Compression in a diesel engine is essential for effective and efficient performance. And when compression is lacking, damage can result. That is why it’s imperative to know whether your engine’s ...

At first glance, the concept of engine compression is simple enough:It's the ratio of the volume of the combustion chamber and bore when thepiston is at bottom dead center (BDC) versus when it is at ...

Mick from QV London, a Ferrari 308 expert with over 40 years of experience, inspects my InfluEnzo. He runs a leak-down and ...