Same with the Duramax, but it's a 27. My point is more that it's a slight bit messier dealing with the bare filter, you have to deal with the o-ring, and in this case the fragile part we are talking about (not the case with the Duramax). None of that is present with a canister filter and it is possible to design the engine that way. Also for those of you who use a mechanic to change oil, you can easily check to see that the filter was actually changed. Not possible with a bare filter.I thought the 3.6 was pretty..24 mm socket long extension and cap came right off. No waiting for the oil to stop dripping.