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Well, at risk of being run down by truckers for past tank of fuel, I tolerated 55 mph to/from work (60 miles each way, altitude gain/loss 2000 feet from Flagstaff to Winslow and back), and resulted in 25.68 mpg hand calculated. Scan Gauge II was giving me 26.4.

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Well you beat me now... My top was 25.3 hand calculated... :cry: As for the mild offset it could be a slight calibration error or speed calibration is off slightly... Either way it will effect the out come...

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My SGII speed, if I set it at 5 results in less miles driven than my GPS odemeter, and if 6, then more than GPS odometer. Can't seem to get the miles driven to agree with GPS. I find myself changing the speed about a 1/2 way through tank to get miles to agree, so I can see the potential for error, but it's pretty close.Was your 25.3 done at 55? If not what speed did you average for that mileage. I don't know how much longer I can tolerate 55 on the interstate, it's eating into my time, also, have to leave for work 15 minutes earlier than before.

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I just went went to michigan, today, as in right now lol. I screwed up and ended up being around 600 miles on 3/4 tank, maybe a little more. I did 80 the entire way. Will be interesting to see what I get. I am gonna go 50mph for at least 200 miles on the way back. Should have numbers for you all by monday.

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My SGII speed, if I set it at 5 results in less miles driven than my GPS odemeter, and if 6, then more than GPS odometer. Can't seem to get the miles driven to agree with GPS. I find myself changing the speed about a 1/2 way through tank to get miles to agree, so I can see the potential for error, but it's pretty close. Was your 25.3 done at 55? If not what speed did you average for that mileage. I don't know how much longer I can tolerate 55 on the interstate, it's eating into my time, also, have to leave for work 15 minutes earlier than before.

Well I did a trip from Cascade, ID to Stanley, ID then down to Boise, ID. This is all winding canyon roads and hill climbing. When i could better I would typically limit out to 55-60 MPH. post-2-138698163615_thumb.jpg 153,549 - 153,197 = 352 Miles / 13.915 Gallons = 25.29 MPG (Copied from my fuel logbook)

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Just got back home, finally. I wasn't able to fill it up after the 80mph run since it costs half my soul but I am going to judge it was around 33 gallons for 650 miles so thats 19.69mpg. Way over my 2mpg/5mph theory which would have theorized around 17mpg. I really did beat the crap out of it so I don't see how it gets so good. Musta been the 2 stroke! On the way back I did 60 the whole way and, not sure what it got since I didn't top it off but from what I could tell, I think it would be pretty close to the expected 25mpg. I am going to top it off for the weekend and run home and back at 50 since traffic was a little too much to try it on the way back here today. That will get me 180 miles worth of testing on some hills and curves.

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