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Yeah conversation with others is awesome when it spawns ideas... This conversation had me thinking about that horizontal bed seal and your comment on the updraft between the bed & cab... going to do an experiment soon where I do a small area of the horizontal bed seal that is centered above the driveshaft. My thinking is since the whole seal increased downforce and adds drag, why not try to split the bubble on the tonneau cover with lack of the influence the seal provides. Kind of like a air driven splitter plate down the length of the tonneau towards the tailgate.
About a month back, before I installed the whole seal, went on a 300 mile road trip to grab the magnahelic gauges. Speeds were 65-75 with AC on the way back. That trip, I had a partial seal installed with duct tape before I arrived at the solution with the garage door seal. That tank gave an impressive 22.1 mpg and I was shocked it was so high. This has me thinking the shorter center seal might be an end solution to the bed seals.
I will update this thread if I find anything meaningful out of it.
Forgot to add... currently doing a "dont care" tank for about 400 miles commuting to/from work. Yesterday on the way home, traffic allowed for 70+ mph and I must say, the truck sure did feel "light" at those speeds, meaning the aero changes were definitely noticeable & there is definitely less drag.
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