A small gap with big importance in the performance and health of an engine - here's everything you need to know.

Each pouch includes a mixture of detergents that dissolve particulate deposits within the fuel system and keep the intake valves clean. Toro now offers its Premium Fuel Treatment formula in single-use ...

As engines age, oil consumption tends to creep up even in well-maintained cars. It’s one of those gradual changes that most drivers shrug off until it starts hitting the wallet or the dipstick shows a ...

Direct injection technology has changed how engines make power and use fuel. It allows precise control of the air-fuel mixture, improving both performance and efficiency. However, this design has one ...

If you've ever seen a mechanic draw a tiny line on a spark plug before changing it, they're not performing witchcraft — they're indexing it. The idea is simple. Most standard types of spark plugs have ...

Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is to replace the ...

What is an oil catch can anyway? Oil catch cans keep direct-injection engines from choking on their own blow-by — here's the quick-and-dirty on why you may need one. Think of an oil catch can as a ...