Power Hungry Performance Forum - MILEAGE RESULTS ATLAS 40/TOW 40

Hey i just got back from a 3100 mile trip. This was the first trip since bill did the ecm rollback and ficm. The last time i did this trip i averaged 15.5 mpg. Now since the rollback i averaged 18.25 all hand calculated. This trip was from so. Oregon through nevada the mts of new mexico to so. Arizona and back home. Driving was from country rds to city to freeway. From 1000 ft el. To 8300 ft. The truck run awsome. One tank was 80 mph freeway driving and another tucson city driving. So for an overall average 18.25 mpg i am really pleased. Thank you bill for the most excellent product and service. By the way the truck had 2000 lb of cargo. All stock 2004 f350 6.0 except egr delete.