[charger1213]

Originally Posted by TexBiker

Do a search here and you'll find many threads on this subject.

I've used Undercover hard tonneau covers for years. Currently have two of them on a couple of Tundras. Best hard cover on the market, IMO. Tough, strong, light and secure.

However, they do not improve mileage at all. Multiple tests from multiple sources have proved this many times.

Thanks for the tips....I'll look at all of these.