Originally Posted by pizzaguy
The filters come with 5 o-rings, you use 4 of them.
I always use all 5. Mine had 5 when I got it so I continue. The difference is 2 grooves on the bottom some use one ring some use 2, but why else would the 2 grooves be there?
I dont think there is any other application than the MB engines and all that use this filter use the same housing
IMO.
