no problem, love when people are very detailed, I thought that's what these threads are for, especially people like me and the others that love the detail that explains how people do things a certain way to get the results. I took mine down to pittsburgh friday and I filled up here I'd say half was highway, then rest city going through pittsburgh made me bald, but anyways I had about 34 psi in all tires, oil was good, everything fine, drove around home for a while and I got 495 then I ran out of gas a mile away from the station oops, but it is so hilly over here up down up down and on the straights my scangauge said 29 to 30 at 70 mph until I had to give it a wee bit of gas then it went down around 22-25 mpg. I wanted to use the acetone, but afraid it might eat away seals, think I will buy some and put it in a container then put some gaskets and seals and let it sit over time to see what happens, I've heard of people getting 2 to 3 mpg extra running it, but I can't seem to find big sources on the internet with info, lots of people though, but I need more, gee sound like a woman (no offense to any ladies). , but in our honda we are getting around 50 to 70 and we are around 500 miles at little under half a tank. if this works I'm getting me my own. I have no idea about the tire thing though maybe your getting better because the throttle response might be touchier, you'll have to let us know. As for our shaft he seen a picture of one and said he couldn't, but he could make one just not aluminum.