I have a 24ft Terry, sleeps 6, bought it new in 1996, before the days of toy haulers.......I get 6mpg to a best of 9mpg while towing this 6,500lb portable house .... I have licensed it in 5years due to steep fuel prices ...I have sold my 7x16 cargo trailer to a buddy, he brings a cot to sleep on while at MotoGP and such..I think I only paid $4300 for that new cargo trailer from a dealer in Columbus area. We have used to to haul four bikes to the Dragon - 13mpg at 80mph ...