so by that logic a 1 pound Tear dropped shaped object has the same wind
resistance as a 6 ton flat brick.

note: our vans more closely resemble the brick :)

> My goodness you guys, nobody is thinking, and I can't sit quietly any
> longer!
>
>  The mass of the vehicle does not change the wind resistance, or the MPG,
> on
> the highway. Stop and go or big hills is another story, but on flat ground
> at steady speed the van could be 6 tons and you'd get the same MPG.
>
> At steady speed you are not accellerating the mass, you are only pushing
> the
> wind out of the way, so mass doesn't matter.
>
> John
> Aircooled.Net Inc.
>
>