I changes the filter shortly after I got back. I must have over-tightened it. When I started up the car ( a couple months later), it leaked like a bitch. Yesterday, we took it off and found the seal was warped. It was a mahle, if that means anything. I went to FLAPS and bought a Pulolator filter ($2.99 on sale
) and put it on hand tight, fired 'er up and no leaks - whew!