I can't tell whether it's the M1 5w-30, Auto-Rx treatment or both in my 96 Saturn DOHC. Last 2 tankfulls show 3MPG better than I've done in months, with the same amount of cold weather idling. All with more city driving than I usually do, to boot.
Average MPG is just under 31 MPG for the last several tanks. Post Auto-Rx and M1, 34 MPG for 2 tanfulls. Haven't seen a Saturn 4cyl run this good since I bought my 98 SL2 DOHC new! Thanks Frank! Thanks Exxon Mobil! No placebo effect here, the real thing!
Average MPG is just under 31 MPG for the last several tanks. Post Auto-Rx and M1, 34 MPG for 2 tanfulls. Haven't seen a Saturn 4cyl run this good since I bought my 98 SL2 DOHC new! Thanks Frank! Thanks Exxon Mobil! No placebo effect here, the real thing!
