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7.3 Ford

Busdriver
Explorer
Explorer
Any one with the 7.3 Ford . How is your fuel mileage towing and not towing. Are you happy with your truck?

Busdriver

2019 2500 Chevy Duramax , - 2017 Grand Design 303 RLS
6 REPLIES 6

Hannibal
Explorer
Explorer
kellem wrote:
Bought my F250 7.3 mainly for towing.
Have 1800 towing miles with our 30ft 7800# trailer and it's done an admirable job.

This is 4000 mile averages with 3.55 gears:
Highway 70mph - 17.3 mpg
City - 12.4 mpg
Towing - 10.4

The towing figure could take a hit as we're headed to bigger mountains and steeper grades next couple of trips.


Same here. Very happy with the 7.3L/10spd/3.55
2020 F250 STX CC SB 7.3L 10spd 3.55 4x4
2010 F250 XLT CC SB 5.4L 5spdTS 3.73
ex '95 Cummins,'98 12v Cummins,'01.5 Cummins,'03 Cummins; '05 Hemi
2017 Jayco 28RLS TT 32.5'

Busdriver
Explorer
Explorer
7.3 gas

Busdriver

2019 2500 Chevy Duramax , - 2017 Grand Design 303 RLS

curt12914
Explorer
Explorer
The first thing you need to do is let us know if you are talking about the pre-2003 7.3 diesel or the new 7.3 gasoline engine. I assumed it was the new engine...
2021 F-350 Platinum 4X4 PSD SRW 2016 Montana 3950FL (2) Honda EU2000i's
...and a few (twenty-some, but other than my wife, no one is counting) antique Allis Chalmers tractors

LanceRKeys
Explorer
Explorer
I have a 7.3 Ford, tows great, transmission just had to be rebuilt at 310,000 miles. I tow 11,000 and get 9-11 depending on wind and terrain.

2001 F-250, 6 speed standard, 3.73 rear end.

Oh, you were talking about the new gas 7.3? Thatโ€™ll probably be my next truck. SRW F-350 with a 4.30 rear end.

kellem
Explorer
Explorer
Bought my F250 7.3 mainly for towing.
Have 1800 towing miles with our 30ft 7800# trailer and it's done an admirable job.

This is 4000 mile averages with 3.55 gears:
Highway 70mph - 17.3 mpg
City - 12.4 mpg
Towing - 10.4

The towing figure could take a hit as we're headed to bigger mountains and steeper grades next couple of trips.

garyp4951
Explorer III
Explorer III