We may receive a commission on purchases made from links. There was a time when engine oil was a simple substance with a simple job to do: keep your engine lubricated and running smoothly. On the face ...

High-mileage engines have settled into a specific mechanical rhythm that routine mistakes can quickly disrupt. Switching oil viscosity without understanding the engine's current state can cause new ...

Despite the doomsayers of five to 10 years ago, combustion engines are not dead. On top of that, there's still a diverse selection available, ranging from three-cylinder turbos built for economy or ...

The demon of engine knock is something an owner of a traditional high-performance Pontiac knows all too well. An engine designed when 102-octane high test was at almost every fuel station in the ...