While fresh oil is generally transparent and amber colored, black oil may mean it's time for a replacement and frothy oil can ...

Playing second fiddle to the dreaded check-engine light is the oil light, one of the many dashboard warning lights that you shouldn't ignore when it illuminates while driving. Some cars have multiple ...

Engine oil performs several vital functions: it keeps everything lubricated and running smoothly while also preventing corrosion inside the engine block, keeps things somewhat clean, and even helps ...

You’re driving along in your car or truck and suddenly a yellow light illuminates on your dash telling you to check or service your engine. If you’re like most car owners, you have little idea about ...

In modern vehicles, there are usually two oil warning lights. The first – an orange or yellow light - is to alert you that the oil level in the sump is becoming too low. This is easily fixed by ...

Think of motor oil as the life’s blood of your car’s engine. Checking it on a regular basis is a key part of keeping your engine running well and getting the most miles out of it. The oil lubricates ...

Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.

The dashboard of your car provides plenty of useful information while you're driving, from the speed you're traveling at to the amount of gas left in your tank. The check engine light is another ...

While your car can’t talk, it communicates with you using chimes, icons, and messages. One icon that you should never ignore is the check engine light. It turns on when the car’s onboard computer ...