A computer generated power stroke of an internal combustion engine, following ignition - Pathompong Thongsan/Getty Images When comparing engine specs for nearly any combustion engine automobile, we ...

As you may know, an engine's compression ratio is directly linked to its combustion efficiency. All else being equal, higher-compression engines tend to make more power while offering better fuel ...

Apart from the very curious, not many people ask why diesel engines, compared to gasoline, run higher compression ratios. The argument is reasonably straightforward and starts with fuel ...

After decades of development, Nissan's VC-Turbo promised to revolutionize engines. But can it compete with Toyota's hybrids?

Taking an engine compression test is sort of like checking your car's blood pressure. It's a quick and painless procedure ...

Add Yahoo as a preferred source to see more of our stories on Google. As you may know, an engine's compression ratio is directly linked to its combustion efficiency. All else being equal, ...

Diesel engines do their hardest work in the toughest jobs, from highway semis to construction equipment, and the reason they can survive that punishment starts with how fiercely they squeeze the air ...