My new '11 EB Fx4
#32
#33
The trailer is a 24x8.5, loaded up probably a little better than 6000lbs.
And that is what I was seeing for mileage while towing, averaging right around 65mph on mostly flat roads...on the return trip, it was slightly better (just over 8mpg). My tires definitely aren't helping me, I bet I could pick up another 1-2mpg by going back to stock or something not as aggressive with less weight. But the biggest issue is the trailer, that thing is like pulling a brick through the wind. I did a little "drafting" by following fairly close to a semi tractor/trailer and saw the mileage climb up into the 12's while doing 65mph with close to 7000lbs in the trailer.
Like I said, I only have around 2,000 miles on the truck as of right now, and a good 1400 of those miles were towing the trailer...only maybe 200 unloaded miles with the 33"s on the truck, if that. So I can't give you a very good unloaded mileage estimate...especially considering the few times I have driven the truck with no trailer, my foot was pretty hard on the accelerator . But as an guesstimate, through the city...I would say around 13 mpg, and 15-16 on the highway doing 75ish. Nowhere near the 22mpg advertised, but the heavy 33's and 4.10 gears have a lot to do with that. I could probably get those numbers up a bit by being a little easier on the go-pedal, but I like to have fun with my vehicle and would rather spend a few extra $$ on gas than drive like I'm afraid of the accelerator.
Sorry, probably not the exact answer you were looking for...but it is honest, better than all of the artificially inflated 25+mpg posts you read about on the forums . Some guys must drive with the wind and down hill a LOT! Haha
#34
Overall I am happy as a pig in shiite with it, wonderful truck ,easily the best I've owned, and I've owned a bevy in my time. Would not waste your time with 4.10's unless you need it to tow or pull 35's, 3.73's run like a raped ape with 33's. But if you are towing a lot (10k loads) consistently you need a diesel
#36
I tap into my saving's, after working 42 year's it's nice to have a little extra. Also don't have to worry about the kid's fighting over it when you're gone! I'll leave 'em my truck.