HilltopMike wrote:
Fizz, so I want to looking for a rounded front like a cougar or something aerodynamic and light?
There is really no such thing as an aerodynamic trailer. Oh if you get an Airstream it will help a touch but not much. Don't fall for the V nose trailers because they don't help either.
Weight doesn't matter much either unless your in the mountains a lot. Once you get the trailer up to speed it's all about the wind resistance and not the weight.
If you have a gas engine your going to get 9 to 10 MPG. From 18 to 30 feet you're going to get 9 to 10 MPG.
My suggestion is get the trailer that you want the most and forget about the fuel mileage. (unless you tow in the mountains a lot)