Interesting: Back to my original theory that it's basically all the same -
Less drag from less dense air, needs less power, but less dense air = less
oxygen = less power, requires more air/fuel to overcome drag...
I live in the mountains because of the scenery, and quality of life (amongst
other things), but if you want to move to save a few cents on gas - there's
plenty of room...

Paul Connelly
'86 Syncro Westy - Hummingbird
9,100' Frisco CO.

On 4/7/06, Alistair Bell <albell@uvic.ca> wrote:
>
> Calculation aid here:
>
> http://wahiduddin.net/calc/calc_hp_dp.htm
>
>
> Alistair
>
> '82 westy, diesel converted to gas in '94
> http://www.members.shaw.ca/albell/
>
> On 6-Apr-06, at 10:27 PM, John Reddick wrote:
>
> The air is thinner at higher elevations.  A Vanagon, or anything else,
> at 70 mph at 6000' elevation, has less total drag than the same
> vahicle at
> sea level going the same 70 mph. It therefore requires less power, and
> gasoline, to go the same speed.  That is why 747's cruise at 35,000
> feet,
> instead of 200 feet.
>
>      John
>      VANARU.COM
>