Well took a trip to Sandiago last weekend, about 450miles from where i live. Went about 85 the entire trip... gas mpg on the way there was horrid... averaged 12.5 but with sever head winds.. i was still a little upset with those numbers. Same trip back with no wind going 85 again i got 16.8 that im very happy about. On average i have been getting between 15.5-16.2 with my daily commute. Im more than happy seeing that considering the 08 EPA ratings showed 12-17. My old dodge hemi did 13.5 on the same daily driving.