Originally Posted by RPM WS6

Many years ago I used to use the ACDelco UPF44 filters, but these were discontinued (though I think they came back for a time, but I never went back to them). For the last ~15 years or so, I've been using the M1-107 filters. Some folks use the longer version (perhaps a 206?), but I never have.

Originally Posted by Jenson

The K&N filter is the best for these oil pans! Unless you have super tiny hands. I wish every manufacturer put a hex head on their filters