Any F650 or F750 Owners

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May 23, 2023 | 10:39 PM

#16

BADCAT55

2nd Gear

Joined: May 2023

Posts: 2

Likes: 0

Yup, it had a CAT 3126b which is a whale turd. I am replacing mine with a CAT C-12 410 HP and 1500 torque.

Jun 20, 2023 | 05:48 AM

#17

vasily2133

5th Wheeling

Joined: Jun 2023

Posts: 32

Likes: 11

what do you think f750 6.7 diesel 10 speed 5.29 axel ratio for fifth wheel loading 30000-35000 lods bad idea? will it use a lot of fuel?

Quote:

Originally Posted by ghunt

Out where I work we just recently bought a '96 F800 flatbed...it has a 12V cummins, 5 speed Allison, and something like 56K on it. The guy that drives it told us he got 11 mpg loaded (hauling 12,000 lbs) and 15 mpg empty on the highway which I almost find hard to believe.

Seems to be a good truck though.

Jun 20, 2023 | 05:51 AM

#18

vasily2133

5th Wheeling

Joined: Jun 2023

Posts: 32

Likes: 11

what do you whink f750 diesel when loading fifth wheel on hogwash mpg will the consumption be crazy?

Quote:

Originally Posted by bayouboy

Thank You all for the info. I have heard a lot of good things about the 7.8 Isuzu in the GM 6500 and 7500. I am a ford person, but I think I will be looking at other brands in the medium/heavy diesel market.