I was wondering what size oil filter wrench cap in MM's i need to fit the PF46? I havemisplaced my own personal one, and was going to order a set of 4 from Harbor frieght, which includes 80MM, 65MM, 68MM and 93MM. Will 1 of them fit the PF46? Thanx, Please let me know ASAP so i can get the right one to do the oil change on my wifes Avalanche, Thanx, Jim PS, I just read PF46 calls for a 3" cap, now, whats 3" in MM? Did a search, Inches vs Millimeters conversion. 3" = 76.2 MM, so the 76MM cap will fit the PF46 i assume. Thanx all, all replies are welcome, Jim