So my buddy comes over to change his oil on his 2005. I think, no problem. Ill use the same filter I use for my 2011gsa which is the same as from my old 1150gsa. I got the numbers from the advrider thread. I change the oil and it leaks a waterfall. I shut the bike off and test everything and it happens again. So, I have a fram filter and it snugs up nice and the same thing all over again. We ended up putting his BMW brand back on and no problems. Is the 2005 filter different than others or am I missing something?!