Posted 1/18/2026 11:49 (#11515190 - in reply to #11514930) Subject: RE: Oil change interval
Extended oil changes on light oil is the death of many 3.5 Ford cam phasers. 5k changes on 5w30 vs 5w20 seems to make them last longer. Bet it'd help anything with AFM as well.
AaronSEIA