hmmm i have had trouble with fram once too. the O ring didnt come off with the filter and i put the new 1 in w/o knowing. and when i started the car it just started spraying everywhere in the parking lot of a duplex . it was in the neighbors driveway too when i started it. so i had to take the filter and drain all of the new oil out, and clean up the spill but hmm. i think ill spend a few bucks more to get a better filter. i use castrol gtx also, aiming to use 5w30 if not 10 later since my car is still new. also isnt mobil1 synthetic, im not balling so i dont want to spend that extra money since oil changes are so common especially for me. just go to price club and pick up a box for cheap!