My 2007 F250 V-10 with 4:10's get around 8 maybe 8.25mpg towing my 8x16 enclosed trailer.. They say the taller gears help but the v-10 is a thirsty engine, though it is a very sound engine.
J&R Lawn and Landscaping
23 years old, Fully licensed and insured. 50+ accounts
2011 8x16 Pace Summit trailer
2011 Exmark TTHP 17/48
04 Exmark Viking 32"
Echo, Redmax, and Shindaiwa handhelds. Husky chain saws.
1997 F-250 4x4 7.3 PSD
Contents of Company for sale! PM for info!