http://www.pittspeed.com/forums/showthread.php?t=19649
Also, I said I filled up on Sheetz gas a few days ago, the report is in.
Vehicle: 4.0L 5m 4x4 Jeep Wrangler, Rubicon, curb weight 3800 lb
Jeep, up 'til recently: average 15 MPG
Jeep, recent tank of Exxon 87: 18 MPG
Jeep, recent tank of Sheetz 87: 14 MPG
4 MPG and I drove basically the same routes in the same driving style. Sheetz gas == poop. But the MTO are good 