Urban Legend
This theory was disproved on Mythbusters an while back
I'm glad your getting better mileage but I don't thing the cover is
causing
it
"willshak" <willshak@[EMAIL PROTECTED]
> wrote in message
news:1sGdnYPcBrOlx4_VnZ2dnUVZ_s-pnZ2d@[EMAIL PROTECTED]
> The beginning of this month I bought a soft tonneau cover for my 97
Nissan
> PU, 2.4 l, 4 cyl FI, 62,500 miles. He's a good old boy and looks almost
as
> good as when he was new. I buy him a present every once in a while. Last
> time it was a cat-back dual exhaust, and the time before that, a keyless
> entry system.
> When I installed the cover, I had about 3/4ths of a tank of gas left.
> Since driving it with the cover on, it seemed that my trip odometer was
> getting a higher reading compared to my gas gauge than before. I usually
> traveled 50 miles between the 1/4 markings on the gas gauge, winding up
> with about 190 miles with about an 1/8th tank of gas left when I refill
> it. I got to 212 miles with about an 1/8th tank left. When I filled the
> tank yesterday and made the MPG calculations from my last fill up, it
> seems that I was getting 18.34 MPG. I rarely put more than 11-12 gallons
> in the 15-7/8 gallon tank. This time, it was 11.595 gallons.
> Before the cover was installed, I was averaging around 16.5 MPG. The
last
> time I filled up before the cover, I got 16.62 MPG. I haven't changed my
> driving habits despite the rising gas prices, or made any long trips, so
> it may be aerodynamics.
> The next time I fill up, the MPG will be calculated with having the
cover
> on for the entire period between fill ups, so we'll see what develops.
> Watch the mpg drop and burst my balloon! :-)
>
> --
>
> Bill
> In Hamptonburgh, NY
> To email, remove the double zeroes after @[EMAIL PROTECTED]
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