Posted 11/25/2016 15:48 (#5656708 - in reply to #5656483) Subject: RE: Duramax fuel filter
SW Ohio
My next dmax is getting a fass twin filter lift pump on the frame rail and completely deleting all that hard to get to rubbish under the hood. The nicktane adapter I had was great till the filter head leaks fuel or air. Lift pump helps longevity of cp3/cp4 pump too".