New 04 HO poor mpg

[SSnider]

I bought a new 2004 HO 3. 73 48re mpg. from day one was 12 .

it hasn't gotten much better maybe 13 hway no load I know it should be better. If they reflash it would that help?



When I was looking at new trucks I accidentally smoked the tires on one of them. They were very powerfull . I can't do that with mine if I tried . Someone said if you can't lite em up from a standstill

somethings wrong. Any help guys, please!!

Thanks in advance, Steve

 

[boonsur]

If this is empty, relatively flat driving, I'd be complaining to the dealer. Mine is the worst case (DRW 4WD), and I still get 16, every time (hand calculated). I haven't heard of anybody getting worse than this, without a load.

 

[Prairie Dog]

I don't think it's so much the power that squeals the tires when their new as much as the rear ends binding up. A thousand miles or so loosens them up.



Scotty

 

[rmcnamee]

My mileage varies depending on what I'm doing with the truck. I run mostly unloaded and get almost 400 miles out of a tank just driving back and forth from work and running errands. However, I recently sold my plow and agreed to deliver it to the new owner in south Jersey. On this trip, I filled up the tank, drove about 125 miles to his house and burned about 1/2 tank. This was at an average speed of 70 mph. While not the greatest mileage (maybe 8 or 9 mpg on average), it's to be expected when you have a 750 pound non-aerodynamic hunk of steel hanging off the front end.



As for spinning the tires, I've never been able to get any of my Cummins trucks to do it from a standstill. Only if I stand on the brakes, bring the engine up, then quickly release the brakes, will the tires spin a little.





Ryan

 

[XJSuperman]

I've been averaging 15 MPG with A LOT of stop and go driving... . my best tank was 19. 7 MPG with a fair amount of highway but still some in town driving. Mine's an '04 HO 3. 73 auto trans.....



Something may be wrong with your truck... . ??

 

[coobie]

I have the same setup as you

2004 ram H. O. 3. 73 48re auto I am getting any where from 17 to 19 mile to gal.combined city, highway,mostly highway. Driving 60 to 65 miles an hr. Truck has about 1500 miles on it. I also use stanadyne fuel additive. I live in michigan,so weather is cold. coobie

 

[coobie]

For got to add

My truck is 4X4. Is yours ???

 

[SSnider]

Mine is a 4x4 Thanks for the replies keep em coming. Does anybody have any suggestions on what to do . Or take it back to the dealer. I was told they might not do anything about it



Thanks Steve

 

[KB0OU]

18.5 mpg

Mine is old but good. Just checked goin to Kansas City and back home running 65-70 mph,,, 18. 5 mpg

Truck has over 366,000 miles

 

[HEMI®Dart]

Steve,

You don't say where you live but have you just used the "Winterized" diesel fuel since you bought it?



Mileage takes a nosedive when running winter fuel. 2-3 MPG less is not uncommon.

 

[XcumminsX]

about 13. 5 mpg... ... all stop and go... . 1/2 the time it doesnt even get to operating temp... . like to jump on it

 

[Rosco]

Originally posted by XcumminsX

about 13. 5 mpg... ... all stop and go... . 1/2 the time it doesn't even get to operating temp... . like to jump on it

Ditto for my driving habits and resulting MPG.

 

[FastEnough]

Dealer then Edge Juice

Take it to the dealer and get it fixed and then put and Edge Juice on when it comes out.

I get 17-18mpg all the time.

 

[lil red cummins]

mine is just at 200 miles and as of right now is at 18. 1 since picking it up. it has been going up steadily. mixed driving with some highway but mostly city. and yes i have been getting into it very often. i love spinning tires in 4th on moist pavement. i lowered the tire pressure to keep it hooked up.



jim

 

[DocDetonancour]

1st tank mpg.

12 towing enclosed snowmobile trailer. about the same as my 96 with the same load and winter fuel.

 

[barbwire]

mpg

My 04 does 14pulling car trailor, and 17 empty@ 70 mph

 

[DPKetchum]

10. 9 pulling 8000lbs roughy 70 mph. From middle ALA. TO Nw Ga. 11. 4 driving four lane non interstate pulling same load but driveing 45/55 and most low 60 mph. 8000 miles

 

[XcumminsX]

SS reset your overhead going down a highway at 45 mph if you still get that mpg you stated something is not right. I do it and it says 20-21

 

[RGardner]

2003 srw 3500 6 speed 4x4 no towing yet but getting 19 - 20 per overhead computer. the 3rd gen are very hard to fill to the top to get an accurate reading for hand calculated. maybe when it warms up i won't mind standing there for ever trying to fill to the top. has anyone found a way to make these vent better?

 

[Jumbo Jet]

Drove 800 miles over the weekend. I-40, I-540 and US64.



Drove 75-80MPH on I-40, I-540 and 60-65MPH on US64.



Computer said I got 17. 2 mpg. Fuel tank said I got 18. 1 mpg.



Light crosswind on US 64 & I-40. Turned into light tailwind on I-540 which is real hilly.



Truck has 1,666 miles on it today. 2500 LWB 4x4 3. 73 Stock HO Auto.