Want to know how healthy or unhealthy your engine really is? Get yourself a compression tester and find out. Despite how complex many modern vehicles are, you can do many common repair and maintenance ...

Diesel engines do their hardest work in the toughest jobs, from highway semis to construction equipment, and the reason they ...

We may receive a commission on purchases made from links. I have been working on my own vehicles for almost 40 years and in that time have accumulated a sizable collection of tools. The bulk of them ...

Almost always, a gasoline engine uses compression, fuel, air and a spark supplied by a spark plug to ignite combustion in a cylinder. Most modern engines use a compression ratio of about 9.5:1, but ...

Because diesel vehicles do not use spark plugs, they must rely on higher compression ratios to ignite the diesel fuel without ...