My milage is pretty good and I stand on it a lot and I get 9, when I drive more on a pace then I make the next marker. My Jammin engine which sucked allot of fuel would get to 10 at Rev, with a 7mm Venti and 240 temps. My smaller track I go to puts 12minutes for my Nova engine. I was talking to my friend on Tues at Rev and said he drops it on his Speed and makes 10 at Rev without a problem, he's Jonesing for another and we are getting more soon.