Diesel engines are torquey and efficient powerhouses capable of outlasting a comparable gas engine. But despite their robust build quality and beefier internals, there are things to avoid if you have ...

Fire extinguishers were necessary during the 1940s-50s startup of piston radial aircraft engines due to the risk of fires from pooled oil in lower cylinders and challenges with "priming" the engine.

It may seem obvious, but fill the engine's crankcase with the right amount of oil, usually four to five quarts, and make sure the filter is full of oil. If you've purchased an assembled motor, check ...