 I bought it thinking I would get less than shown on mileage.WRONG !!! After 1000 miles getting,Interstate drivingcruising, 70 mph on flat ground,a steady 36.7-.8 mpg.Yesterday a 53 mile return trip driving Interstate Hwy with rolling hills, State Hwy with steep hills, 6 miles of rural blacktop road with high hills and and winding curves, stopping in small town to buy dinner, stopping at 4 stoplights . Average 34.7 mpg, average speed 49 mph for total trip . General driving trip to town driving 26 miles through steep hills on winding road and town driving, average 29.3 mpg. For anyone getting terrible mileage with this engine, try Star Tron add to clean water/crbn from fuel,etc. 