Many drivers think semi-synthetic and synthetic blend oils are different, but they’re basically the same, labeling standards ...

Starting January 1, 2027, new heavy-duty diesel engines will hit the road. And when engines change, oil has to change with them. That’s the entire story. Under upcoming EPA regulations, heavy-duty ...

GM Authority poll shows owners overwhelmingly want thicker 5W-30 or 0W-40 oil for next-gen V8s, citing durability over thin 0W-20 fuel economy gains.

GM truck loyalists are lining up behind an old-school idea for the next small block […] ...