Tag Archives: group III

Are all Synthetic Oil Groups the Same? Group III vs IV vs V John Baker|Feb 06, 2018 11:27 AM The simple answer No. In fact, there are wide performance differences between base oil categories. Generally speaking, Group IV base oils offer the best performance, Group III second best, and so on in reverse order. But […]

The 3000 Miles Oil Change Interval Doesn’t Address Oil Quality When people say to me they change their oil at 3000 so not to take any chances that dirt could be causing damage or the oil could be getting “bad”, I say to them, why not change every 50 miles then?? I’m sure the oil […]