More cars than ever use full synthetic oil. But when you’re performing an oil change, how do you know whether a full ...

Can stuck piston rings be restored without teardown? A 500,000-mile Valvoline engine test shows how deposit removal may ...

Looking for affordable motor oil that won't let you down? Here are 3 cheap motor oils that deliver solid performance without ...

Along with requirements for the kind and weight of the oil they use, vehicle engines also have a set amount of oil they need, which varies by size. I reckon we're all aware of what happens to an ...

Oil and fluid testing answers both short- and long-term questions about the internal condition of engines, transmissions and hydraulic systems. A one-time sample of engine or transmission oil gives a ...

We may receive a commission on purchases made from links. Turbocharged engines are nothing new — the systems have been around since the late 1800s, first applied to airplane engines and eventually to ...

It’s an advanced, next-generation engine oil standard focusing on ultra-low viscosity oils for modern engines. When purchasing oil, look for the API Service Symbol "Donut" on the label, which is an ...

When it comes to caring for cars we cherish, it’s better to play it safe than sorry. If you’re like me, you’ve been changing your oil every six months whether you’ve done 900 miles or 5,000, wondering ...