Only reason I bought the Mobil1 filters was they were included (free) with the lower cost Mobil1 0W-40 in the 5.1qt (yeah I read there is actually a 0.1qt extra per bottle). All my other vehicles use whatever el-cheapo oil filter the local stores sell as they are certified equal to or better than OEM. I will stay with the Mobil1 oil but the filter is whatever I get. One reason I am keeping to the Mobil1 is the lifetime powertrain warranty (don't want any possible future arguement with any dealer). Another reason is right now I am getting it at a good sale price and I don't have to keep checking MB authorized oils (btw, the lifetime is with Chrysler, not MB), so I am keeping with Chryslers oil until I can get something from Chrysler saying another oil brand X or Y is certified for the sake of the powertrain warranty. Never in all the oil changes I have done has a filter failed, and Mobil1 states their filters are tested at 5 times the pressures encountered (paraphrased). So, no Mann/Wix/Fleece for me unless they are a gift (hey alaxfire, you listening?)!