Wondering if 15W-40 oil is only for diesel engines? Learn where this oil grade is used, and whether it’s safe for gas-powered ...

Cummins makes some of the best engines, especially for trucking, so it's reasonable to wonder who founded the company and why ...

There is an exception to this rule: work vehicles. Tons of work vehicles in the U.S. use diesel engines, and that's where most of the diesel engine tech goes these days. Tractors, semi-trucks ...

A technology company has broken the world record for the overall thermal efficiency of a diesel engine, which could save ...