0W-30, 5W-30, and 10W-30. However, new GF-7B oils, which cover ultra-low viscosity grades such as SAE 0W-16, are intended only for vehicles specifically requiring them. Vehicle owners should ...

Over the past 40-plus years, I have changed the oil in more engines than I can begin to count. If you're about to change the oil in your car yourself, consult the owner's manual that came with ...