I've got a 51 plate MINI Cooper with a bad oil leak on the filter seal. I've bought a new filter and o ring hoping that'll solve it, is there anything I'm doing wrong or is it just a duff seal? (the current one doesn't seem damaged)
I'm wondering if I'm trying to fit it in the wrong groove, it is the one above the one with a little hole in it, i.e. at the top of the threaded section?
