Perhaps this has been beaten to death already, but i will reinforce the facts
Mobil 1 M1-108a can be too long at 3". The Mobil 1 M1-108 is (can be?) 2.5" and works. I saw one thread that said the "a" will fit...i guess they never used the center stand or they got a short one (see below). I dont know why i got the "a", just grabbed it.
What a mess. Good thing i was not on the road!



This is my universal filter wrench. I have always put them on as tight as i can by hand. Never had one come off without a wrench.

Update: I clipped this pic from Amazon. Perhaps the filters come in random sizes or are fakes

Final thought...i believe these filters are used in some Subarus and Mazdas automobiles! Either we are over filtered or they are lacking filtration?

What a mess. Good thing i was not on the road!



This is my universal filter wrench. I have always put them on as tight as i can by hand. Never had one come off without a wrench.

Update: I clipped this pic from Amazon. Perhaps the filters come in random sizes or are fakes


Final thought...i believe these filters are used in some Subarus and Mazdas automobiles! Either we are over filtered or they are lacking filtration?