Engine temperature looks simple on the dashboard, yet the system behind that gauge does complex work every second. A healthy radiator keeps combustion heat under control, protects expensive components ...

Engine overheating is rarely the result of a single failure. It usually happens when several small weaknesses in the cooling system line up, from low coolant to a stuck thermostat or a failing fan. To ...

The oil inside your car's engine can sludge up with neglect and infrequent oil changes. Sludge is a nasty contaminant that can destroy an engine if not given attention, but timely oil changes are a ...