Engine/Transmission (1998.5 - 2002) 3500 dually

[SAndreasen]

What should a dually 3500 weigh empty with a regular bed

 

[Road Dog]

My dually is 7,500# with me and a tank of fuel.

 

[SAndreasen]

Thanks for the info

 

[SAndreasen]

What kind of mileage do you get ?

 

[Road Dog]

Around town: 15L/100km (16 US mpg)
On the highway: 11L/100km (21 US mpg)
On the road with my slide in camper: 15L/100km (16 US mpg)

I seem to do best with my Edge set to 2 (tow).

 

[SAndreasen]

I'm lucky to get 16 but I think its because of my 3000 lb bed . I'm trying setting one since I can't get my chip to adjust low end settings

 

[Ramtuf1]

Mine weighs 7,640 with me and fuel. Truck info in signature line.

 

[SAndreasen]

Mpg up to 15.88 from 13.79 last tank changed from edge setting two to 1

 

[SAndreasen]

I am 1500 heavier than you guys with a light of just over 9000

 

[Woodenhead]

My '98 12V weighs in right at 8000lbs with 225lbs of me in it and some fuel.

 

[bcbigfoot]

My 2002 3500 Quad cab 2wd, auto, full of fuel with no driver weights in at 6800lb. It makes 19 mpg (on US gal.) at 65 mph with 4:10 gears and stock 235 85/16 tires.

 

[SAndreasen]

I cannot imagine owning a 2wd dually but I also can't imagine getting 19 my 98 regular cab single wheel 4wd with 285 75 16 tires 3.42 gears would barely make that

 

[SAndreasen]

Another question would I gain anything buy going from 245 75 16 to 265 75 16 tires with 3.54 gears or would the rolling resistance outweigh the drop in engine speed ?

 

[VolsFan]

with a high rear I don't think you would gain anything by going to a larger tire. I have 4.10 rear w stock 235/85/16 tires and run 2100 @65 and goes up fast from there fuel mileage plummets. on my 99 285/75/16s helped to knock rpm back, had 4.10 rear. But with bigger tires you will wear out your unit hubs prematurely, ask me how I know!
I avg around 15 mpg with stock tires and low rears, everyone I know that has the 3.55 or 3.73 in the 3rd gens gets upper teens.

 

[SAndreasen]

On my 98 single wheel with 3.42 going from 265 to 285 went from 17 to 18.5 mpg I understand the dually is a completely different machine and that was the next question are the duallys a lot harder on front end components?