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Hey Phil, that's a hilarious "turbine" story! I agree with your analysis on the inaccuracies of filling up a small amount. So for the trip, I filled it up until it stopped, then topped it up both times. But I agree I don't know how precise that'll get me. Also your gas expansion is a good idea. It only had 1.5 hours to heat up though, and I only put in a few gallons in the first fill-up anyway, so the other 12 gallons were already warmed. On another fill-up, a one-gallon run, I got 53 mpg but I discounted that for these reasons. But after getting 46 on a 2 gallon, I thought there might be some truth to it after all. I'll just have to do a longer drive sometime. But 1,201 miles averaging 35.2 mpg is a solid count. My guess is if I did a full tank's drive, my mileage would increase because I only accelerate once, and the gas tank gets lighter as I go.
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