WOW, I wish I would have known about the FRAM filter. I use them on my 2000 Grand Prix, with Mobil One. It has 160000 miles on it now. I have noticed that it has always been alittle noisy when I first start it up, but after that it runs like a champ. I guess I will switch to AC filters from now on. I have to say that I am very impressed with the oil. I have had it since 68000 miles and beat the living sh*t out of it and it still doesnt burn oil or have had any internal engine failures.