Engine oil is vital for protecting a car's engine. If your car requires 5W-20, can you use 5W-30 instead? Here's why those ...

The new GF-7 oil standard focuses on better engine durability and cleanliness, and is backward-compatible with previous ...

GM says some oil use is normal. Here are its official limits for cars and trucks, plus the key checks dealers use to confirm ...

The oil in your engine can evaporate, but only under very specific — and extreme — operating conditions. These conditions occur when your engine is operating at very high temperatures, which can ...

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 ...

According to some quick napkin math, you'd be spending more than $230 in gas and oil to keep this car going for 1,000 miles.

Do you often find that your oil level is lower than you expect when you check it, or do you get a lot of grief from the tech at the oil change shop about your oil change intervals? If so, your engine ...

In certain vehicle models years, Ford's Coyote 5.0 engine experienced an oil consumption problem that has since led to ...

This might be the cleanest engine we've ever seen torn down.

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