On Wed, 18 Jan 2012 09:42:43 -0500, "m II" wrote:

Gas economy. I have been told without a cover and with the economy goes
from 12 mpg up to 20 mpg on a full size pickup.

In your dreams. A couple of percent, tops.

This may not be any concern in the USA as their gas prices are so cheap
and their air doesn't matter.

It matters, but my little truck only gets 15MPG, on a good day )4WD kills gas
mileage).

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wrote in message ...

I wonder why people put caps or covers on pickups. If you want to
cover the
thing, get an SUV.