To combat its brick-like shape, Ford has patented a convertible, foldable tonneau cover that not only covers your stuff but could also direct air away from the least aerodynamic part of the truck ...

and results showed a tonneau cover does, in fact, improve gas mileage — but with some caveats. The test involved a Chevy Silverado, a Dodge Ram 1500, and a Ford F-150 making laps around a ...

Using fullsize pickups from Dodge, Ford and Chevy, the trucks were driven 100 laps at 45 mph. Two had tonneau covers and the third had a bedcap. The gas tanks were topped off and the tonneaus and ...

they too showed a slight mpg gain with a tonneau cover. Back in 2014, Brad Richards (Design Manager for Ford Motor Company) appeared on Autoblog and stated that based on testing in a wind tunnel ...