We just got our 26' Gulfstream 3 months ago today, and have already pulled it about 5500 miles. At an average of $3.00 per gallon all summer, keeping the gas tank full on our our Ford F150 was the biggest expense we have had. (not counting the cost of the trailer, since it is spread out over 2 years.) I used to think those wind deflectors, the shiny silver wings, the black plastic paddles, all the others looked ridiculous, but if they can save me money, looks aren't quite as important as they used to be. Does any one have any real life experience with these, particularly with a gasoline powered truck? I would put a picture of our truck and trailer up, but this site doesn't want to let me. Every time I try, it tells me I'm an idiot (or something like that) I am curious as to how much one of these might improve my mileage, and whetehr or not it will pay for itself before I am too old to care.