If you’ve got an old car that no longer runs, costs more to repair than it's worth or has been sitting untouched for years, ...

A pro explains how to change your oil at home in under an hour.

Choosing the right engine oil and knowing when to change it can make all the difference in your car’s performance and longevity. From synthetic vs. conventional debates to matching viscosity grades ...

Diesel engines in trucks and some passenger vehicles can derate power and go into limp mode, and this can be caused by a ...

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