supr

I have read a few posts on wings. The consensus is that they "Just move up the Bug Line".
Speed has a lot to do with mileage, as well as height. I have 4.10's , so at 1700-1800, I am doing 55, a fairly optimum speed. I am 12', fiver, get between 11-12 mpg, maybe 14k. I think that is about average for many folks. When you start getting up over 60, mpg tends to drop quickly. I know that even dropping to 50, the exhast gauge drops at leats 100 or more. So more speed normally means more heat, more fuel.
The Fivers may be somewhat more aerodynamice vs bumper pull, as they are located closer to the cab for a somehat more streamline effect. Either way, drag is what cuts mpg, much miore so than weight.
At 70 solo, i drop to 15-16. Pulling a heavy utility trailer, 5-10k, makes little diffrrence in mileage, as there is usually not much air drag.
For what its worth.

rednekroper05

One piece of advice is to remove your tailgate when towing a 5er or gooseneck this will aid in a liitle less drag. As far as a wing goes I know some guys that swear they improve the mileage but Like someone said above they have to be placed close enough that no air goes down between the wing and the trailer.

wiskeyVI

I agree with the roper on the tailgate....I've lost cooler lids, ripped of the coolers, due to the turbulance in the bed.
It also puled the sheathing loose under the hangover from the wind buffetting it.
I removed the tailgat last time and it was a big differance.
I'm looking for a cheap mesh 5ver gate right now.

rednekroper05

pullin the tailgate also works on bumper pulls also. We went to Neb. awhile back to pick up a heifer with a 18ft two-horse and it pulled a lot better without the tailgate. Although on some of these square face bumper pulls im not sure that trick would work. It all just depends on the aerodynamics of the trailer.

jpajax

Tight wad me I had to make my own out of pvc pipe sure is a lot lighter than stock.

supr

Camping World has a steel fiver tailgate that is about $150, I think. It certainly makes hiching & unhitching much easier. It also elimates bent talgates, that a few on the site have experienced. Any aero affect is a plus.
I like the steel gate, as it is strong and not too heavy. You can bump your king pin and it may give, but not break.

Jaxom

I have a 5th wheel "aero" style and it is strong enough to load my 600+ lb quad into the bed.