First let me say I'm NOT starting a new oil war. Just want opinions on the 2. My local Wally World has both in 5 qt jugs. Any value in the Mobil 1 high mileage oil for our cars? Would it matter which I choose? What do YOU use? They also have Castrol, etc but I'm not interested. While I'm at it is the ac/delco filter they have a decent filter?