Vehicles have three kinds of oil lights, and each means something different. So when they come on, how long should you wait ...

When the check engine light comes on in a vehicle, it’s indicating that there is some issue with the car that should be checked out. It could be something minor, such as the gas cap not being screwed ...

A check engine light usually isn't urgent warning, but does require some diagnosis. If the oil light comes on, however, you should take immediate action.