[Kahloq]

EATON would know better then anyone here about their own superchargers and they affect any aprticular behicle. But, I can't imagine any supercharger is going to give you better gas mileage as a supercharger is meant to force more air and compress it into the fuel mixture in the engine for more power.
It will help with pulling the trailer, but mostly if your hauling up hills alot. You'll get faster take off with it and a trailer connected.
If your looking for better fuel mileage, add headers aas well as cold air induction and cat back exhaust. You'll get a bit more power too cuz the engine doesn't have to work quite as hard cuz it can breath easier.
Doesn't EATON pay for the gas?