Wow...
And I love how they misquote the Mythbusters episode.
-> Mythbusters never tested a bed cap nor made any claims about bed caps. They did test tailgate up/down, tailgate off, mesh tailgate.
And another thing, which makes me slightly perturbed - "better" does not mean best. Tailgate up| better. That doesn't mean it's the best solution. It's amazing no one mentioned the logical fallacy of the several comments saying something to the effect "Didn't you see mythbusters - tailgate up is better [than tailgate down] - therefore, this won't work."
I'm half tempted to post over there too, but what good will that do?
Also, I don't see where Bondo claimed it was 1.7mpg increase (someone posted in that forum that bondo claimed this on the ecomodder fourm. I'm looking at the thread (
http://forum.ecomodder.com/showthread.php?t=583) and don't see it (am I missing something?)
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Take it as a reality check - want to know why people are so resistant? That's why. Personally, I'm thinking its a general lack of education in the realm of physics (IIRC, US is at the bottom of that education quality list). That being said, this is why I think posting over there will be fruitless - I haven't established any credibility over there, and then I'm going to put forward data (not claims, data) contrary to their speculation. Perhaps if we were in the old days when it was general knowledge and people realized aero was a way to go faster on the salt flats - but that age is long passed