Fuel Mileage

[darrell]

Now - how do you explain improved mileage at altitude.... (And, try not to start with less wind resistance.)
[/quote]
I'm not sure I can explain why the mileage increased the 1 mpg despite the average speed for the total trips was 8.5 mph faster on the higher altitude ride. Also in some of the smaller towns in the Rockies you can only find 85 and 87 octane gas. I know one time I filled with 85 octane as that is all the station had. I'm not sure if thinner air affects fuel mileage. I know it affects me when I attempt to hike any distance at elevations of 10,000 ft or above.

Will be a good discussion topic while in Gunnison.