Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Does fuel economy get better with altitude?

wagonman76 · 07-07-2009, 01:49 PM

I didn't have a mpg gauge at the time, but when I towed my camper through the Porcupine mountiains in the UP, I noticed it was a lot easier to maintain 55 mph the further up I got, plus I was going uphill. A lot easier than any of the flat roads at lower elevation. Only reason I could think of was the air was thinner and less wind resistance.

07-07-2009, 01:49 PM	#13 (permalink)
wagonman76 Master EcoModder Join Date: Jun 2008 Location: Northwest Lower Michigan Posts: 1,006 Red Car - '89 Chevrolet Celebrity CL 4 door Team Chevy 90 day: 36.47 mpg (US) Winter Wagon - '89 Pontiac 6000 LE Wagon 90 day: 28.26 mpg (US) Thanks: 8 Thanked 17 Times in 16 Posts	I didn't have a mpg gauge at the time, but when I towed my camper through the Porcupine mountiains in the UP, I noticed it was a lot easier to maintain 55 mph the further up I got, plus I was going uphill. A lot easier than any of the flat roads at lower elevation. Only reason I could think of was the air was thinner and less wind resistance. __________________ Winter daily driver, parked most days right now Summer daily driver