Tonneaus
Our new truck doesn't have a tonneau cover for the bed, and we're thinking that it would probably improve aerodynamic performance (and mileage) if it did. Does anyone have experience with adding one ...
Forum Discussion
mabynack wrote:
Mythbusters did a piece on this and it had virtually no impact on mileage. I had one on my truck for awhile and liked it. It allowed me to keep things in the bed without worrying about them being stolen. Mine wasn't completely weather tight, so I couldn't put groceries back there if it was raining.
Mythbusters did the test on two different occasions, and with careful scientific methods proved there was nothing better than an open bed.
That's said: I have had softcovers for years. They will tend to keep the honest people honest. Out of sight out of mind.
The other issue I had was some folks thought the back of my truck was the place for their trash! Didn't happen with a cover.
