Originally Posted By: dblshock
...on paper the add packs of 0/40 A3/B4 are +100% of 0/20, if efficiency is not effected and you won't pay more why on earth would you continue with the CAFE spec? a quarter dollar a month in fuel?
Not going to argue. It's your car. Mine is new and under warranty. You make it seem like a 40 is just so much better. It may or may not be. Paper is one thing. Real world is another. If it works for you, great. Seriously.
I can see stepping up a grade, but I've read your posts and you were all over the board. Glad you found your oill