Motor oil is a key to your car, lubricating parts that mustn't grind together. And there are lots of potential signals to ...

Semi-trucks may need an oil change every 25,000 miles. That interval may vary depending on such factors as the type of fuel ...

Synthetic motor oil is used in most modern vehicles, especially ones that are high-performance and turbo-charged. It costs ...

Engine oil is the lifeblood of your vehicle, and it's important to change it on schedule. However, can you just top it off?

You can change your car's oil right after a long drive, or before moving it anywhere, or do something in between. What's the ...

When we say "overfilled," we're indicating multiple quarts added over what the engine calls for. If you added a little too much on your last oil change, don't worry about it. However, if you put ...

Some brands of motor oil also promise more miles per oil change. Blends that mix conventional and synthetic oil can offer a better price while improving performance. One exception is Shell's ...

EVs with a range extender still need an oil change. Learn how oil and filter maintenance works based on hours, not miles.

The National Transport Safety Board found indications that the aircraft suffered an oil system failure in a preliminary ...

Q. My car, a great running Toyota, has a recommended oil change interval of 10,000 miles or once per year. What are your ...

My car, a great running Toyota, has a recommended oil change interval of 10,000 miles or once a year. What are your thoughts ...