Add Yahoo as a preferred source to see more of our stories on Google. As engine standards change, the oil that protects them has to change too — especially for drivers buying new trucks in the next ...

A clear message emerges from GM’s dedicated enthusiasts: the decade-long era of ultra-thin engine oil must end. A recent poll conducted by GM Authority reveals a striking consensus among readers ...

As General Motors prepares to launch its Gen 6 Small Block V8 engine family in conjunction with its next-gen light-duty pickup trucks, GM Authority has been bust serving up a variety of critical ...