You might overlook the end gaps of piston rings in your car. They shouldn't be taken so lightly, though, as they actually ...

In a conventional piston engine, the compression ratio defines the relationship between the largest and smallest volume of a cylinder - when its piston is at bottom dead centre and top dead centre ...

Ever since the first internal combustion engine hit top dead centre, engineers have been locked in an inexorable battle with compression ratios. Too low a compression ratio and the engine's efficiency ...

Diesel engines are different from gas engines in numerous ways, including their use of high compression ratios. Here's why ...