i have a 04 f150 fx4 5.4l triton with 80x miles. i plan on towing a car hauler with a lifted jeep on it. im guesing the jeep weighs around 3x pounds. i get 16 highway right now. how bad should this tow effect my gas milage any ideas? im driving 300 miles to silver lake sand dunes in michigan, HOOYAH i think the gears in an fx4 f150 come stock 3.73 im sure that makes a difference.

 

You may get 7-9 mpg. When my parents had their 6000lb travel trailer they got 7-8 mpg on a good day..

 

I don't know if the trailer is enclosed or open but figure 7-9 mpg. I noticed that towing around 60-65 mph is the sweet spot for mpg and does not down shift as much. I have the 3.55 rear end.

The dunes are a great time I go up there every year to atv.

 

I get about 6 with my 5000lb loaded open trailer. You should get around 6 to 10 depends on the terrain, wind resistance, climate, type of fuel, how much psi are in the tires, rolling resistance, all sort of things come into play. Just keep the trans cool, lock out overdrive, put a brake controller in your truck (worth every penny), plan your route, and keep a spare tire with you for the trailer and a jack. Just a few things I would have.

 

04 FX4 w/ 3.73 rear end. I average 10-12 depending on the load when I pull a 20'x8' Enclosed trailer. Not quite as heavy as hauling another vehicle on a flatbed but it really all comes down to how you drive. Accelerate slow from stops to reduce fuel consumption and it is easier on your transmission too. I try to keep it at about 65 on the interstate. Anything over that and fuel economy tanks even more.

 

You have gotten some good advice already, I am on 37s with 8" of lift and stock 3.73ls gears. I tow a double axle trailer with a CJ on 35s. around 5k-6k lbs, getting 6-9 mpg(Florida is relatively flat) any chance I get I take rural highways with speed limits around 55mph. I never hit 70mph because the mileage drops dramatically. If I can get in behind a semi truck I dont care how fast he is going it saves me a ton of gas. I would recommend getting a edge evo tuner to set the truck on tow setting.

PS it sucks when a ECO Boost zooms past you at 75-80 towing a heavy load.

 

holy crap...that's bad.

I get 8-9 with my 7000lbs 23' long travel trailer.


open trailer and a jeep..which is way less "wind catching" than a travel travel: you should get 10-12 with a stock 5,4...lower that if lifted and bigger tire.

 

I would have to agree. With my 7000lb travel trailer towing around New England I get 9-10. Even more when I get out to the flats of PA and NJ.

 

amen!