Diesel engines can technically run backwards, though there's very little (if any) practical applications for this, especially for road-going engines.

We've all thought about what would happen when you pour jet fuel into a diesel engine. Will it work or lead to immediate catastrophic failure, perhaps even an explosion? Planes are among the most ...

If your lifestyle or profession requires a heavy-duty pickup truck, the odds are favorable that truck will have a diesel powerplant under the hood. Although diesel fuel is currently more expensive ...

Cummins released details of its 2027 X15 diesel engine, which it says meets EPA 2027 emissions requirements while improving fuel economy — and without adding weight or using more diesel exhaust fluid.