11.6 mpg :(

[Bopper]

Hey guys did my first road trip today with my 12 f250 diesel, pulling a 16 ft tandem axle flat deck trailer with 4 snowmobiles on it and I only got 11.6 mpg! The truck has 2200 kms on it, will this get better or should I be looking at getting a bigger fuel tank?

[BIG Laing]

Originally Posted by Bopper

Hey guys did my first road trip today with my 12 f250 diesel, pulling a 16 ft tandem axle flat deck trailer with 4 snowmobiles on it and I only got 11.6 mpg! The truck has 2200 kms on it, will this get better or should I be looking at getting a bigger fuel tank?

Its normal. Alot of people are seeing 4-5MPG drop towing 4K lbs or less. Has to do with rolling resistance, and aerodynamics.

[Black2012]

On my dodge I had to pull 4 horses in a steel trailer at 80 mph for my mileage to suck this bad. Why do they drop off do quickly on our trucks?


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[youngstroke]

Pulled around 5k lbs at 75 mph today got 9-9.5

[hollywood1983]

What big laing said

[hucorey]

This years winter blend fuel is 1/2 the problem. B20 in it now instead of K1.

Sent from my Galaxy Nexus

[BIG Laing]

Originally Posted by hucorey

This years winter blend fuel is 1/2 the problem. B20 in it now instead of K1.

Sent from my Galaxy Nexus

winter blend dropped me 2mpg empty... I wouldn't want to be towing at all with this crap.

Best towing I have so far was 5500 pounds doing 55mph was getting close to 20. But pulling 4000 pounds at 70 dropped all the way to 12!

[SlickYamaha]

Towing at 11.6?

In my 2011 gasser I dropped to 10.2 with my 6" and 37's, and thats empty!

[LockNess]

I was getting about 15.1 mpg (towing nothing), but saw an improvement to around 15.7/15.8 mpg once my mileage got above 20K.

Towing was a different story. I towed my son's Ford Ranger 800 miles on a flatbed trailer
and watched my mpg drop to 11.2. Same with my gooseneck livestock trailer. MPG drops substantially.

I have a fabricated flatbed on my F350 and at first I thought it was the headboard creating drag, so I modified the headboard, cutting away the top corners but my mpg towing has stayed the same.

[Balla6.7]

Your truck is still very new. Mileage will continuely improve until about 30k miles.