MPG's on 4.5 HO 600 AWESOME!!!!!!!!!!

[Jeremiah]

No heat!

No heat from this guy! Anytime you can get 700 or more miles out of a tank, that's awesome! I do it as well when I'm being careful, but my behind is chewing button holes in the leather the last few miles. Do the math: 35 gallons x 20 mpg = 700 miles.

 

[Blownaway]

If I got as low as 15MPG I would be ******, I get consistantly 18-21 MPG, Hand calc. . I drive alot of freeway but have done a bit of everything, my worst tank to date was probably 16. 5MPG

 

[Jeremiah]

Low mpg prize

Originally posted by Blownaway

If I got as low as 15MPG I would be ******, I get consistantly 18-21 MPG, Hand calc. . I drive alot of freeway but have done a bit of everything, my worst tank to date was probably 16. 5MPG

16. 5 mpgs? You win the prize. For low normal-driving mpgs, that is. I have never gotten below 19 mpgs, even when I was kicking it in the butt solo.



You can't tell about haulin' or pullin' because that's a different ballgame. All depends on how much. How much is:



How much weight, how much altitude, how hard it pulls (up-hill, etc. ) and for how often and how long, and how much help it gets from rear-end ratios and whatever power boxes you've added and what type;



It also depends on how much time you spend lookin' at your boost gauge, which tells you when you've got your "foot in the fuel tank," as it were.

 

[thames1948]

700 miles from a tank full is really great. Sure beats the heck out of my 443 miles last time I checked it

 

[FDrake]

As I have posted elsewhere, I use the TOW/HAUL feature in for in city driving now to lock the transmission up. It seems to have increased my MPH about 2 MPG. After having the 6 speed stick, this auto transmission is the pits for MPG but great for driving. Why can't they reflash it to get the lock up right?

Frank

 

[Blownaway]

16. 5 was all city/short trips when the truck was new, I have hauled up to 12,000 pounds for short times but never a whole tank. e. g rented a tractor and hauled retaining wall bricks etc. I always get at least high teens for mileage. If I drive strictly to work and back a few times(all freeway) and then fillup it will be right at 20MPG. WE will see what happens when I hook up the fifth wheel for a long trip.

 

[carson6]

13. 8 last hand calc. it is going up with 2,000 on the quiet beauty

 

[GCrowell]

I'm lucky to get 9. 5 towing ~11000 at 60mph. Not too happy with that. Solo my best tank was 16. 5 at steady super slab speed of about 62. That is not too bad but the towing is not near as good as my '02 SO 2500 47RE got. Granted, I was towing only about 6000# then and got about 13mpg while solo was 20+mpg. I have about 6200 miles on the clock on my 3500 and am considering taking it to the dealer with a complaint about the lack of power and poor mileage. It will be interesting to see what if anything they say can be done.



George

 

[Jeremiah]

Poor MPGs

Originally posted by GCrowell

I'm lucky to get 9. 5 towing ~11000 at 60mph. Not too happy with that. Solo my best tank was 16. 5 at steady super slab speed of about 62. That is not too bad but the towing is not near as good as my '02 SO 2500 47RE got. Granted, I was towing only about 6000# then and got about 13mpg while solo was 20+mpg. I have about 6200 miles on the clock on my 3500 and am considering taking it to the dealer with a complaint about the lack of power and poor mileage. It will be interesting to see what if anything they say can be done.



George

Yeh, it seems a bit low, although pulling 11,000 lbs. in an 8,000 lb. truck puts you about 3,000 lbs. beyond GCVWR. Not much of a problem for the engine, but it will impact the mpgs.



You're also running a 4. 10 rear end and duallies, so that will have a negative impact on the solo and towing mileage. Plus, the '04s on average seem to get fewer mpgs than the '03s.

 

[sagebucks]

My 04 (QC 4x4 LB 48re) gets 4 mpg less consistently (all hand calc) under identical conditions on the same route that I got from my 01 (QC SB 4x4 6sp, edge comp level 2-5, 4" exhaust). I would like to get the injectors that give you a few mpg back, but the $$ is a bit much. If I could just get 2mpg more I would be happy, but 15 mpg on the highway sucks, period!

 

[Apence]

i wish i got 15 on the highway with cruise at 68 mph all flat i get 13. 8 to 14. 5 best.

 

[Jeremiah]

04s and mileage reports

Sadly, these reports are going to go only one way: down in power and/or miles per gallon. The government is requiring diesel engines to be 90 percent efficient by '07, which means the '03 will be the last free-breathing (more or less) truck on the road.

 

[HOCummins04]

Filled up today - 19.7 hand calculated

Best I ever got with 01. 5 was 20. 2 or so. Only have 2700 on the clock now on 04. 5.



Driving I65 in central Indiana, from Lafayette down to Columbus for tour of Cummins MidRange Engine Plant, and back. FlyingJ at Lebanon has diesel for $1. 599. Filled up there on the way to Lafayette originally. Drove about 50 miles around town stuff. Just me and my dad in truck to CMEP tour (WHAT AN AWESOME TOUR - HIGHLY RECOMMEND). Speeds were 65-70 except for going through Indy at about 60 MPH.



I am pleased with the mileage so far. Going to pull 8000# trailer to Thunder In Muncie this weekend. Should help loosen er up a little more. Hand calculated 19. 7 but overhead only showed 15. 7. Seems to consistantly read low. I am glad the overhead is wrong

 

[Scrappy]

Re: Poor MPGs

Originally posted by Jeremiah

Yeh, it seems a bit low, although pulling 11,000 lbs. in an 8,000 lb. truck puts you about 3,000 lbs. beyond GCVWR. Not much of a problem for the engine, but it will impact the mpgs.

the new trucks Gcwr is 23000# this truck is still 4000# under his max.

 

[Jeremiah]

Maybe it's 16,000 lbs. that it'll tow. I thought I remembered 16,000 lbs. being the combined rating - truck plus whatever's in or behind it.

 

[Scrappy]

Gcwr

16000# is the max weight for the trailer alone that the truck can pull.

 

[Jeremiah]

Re: Gcwr

Originally posted by Scrappy

16000# is the max weight for the trailer alone that the truck can pull.

Ain't it amazin' what you can forget when you really try?

 

[klenger]

What was the question?

 

[Jeremiah]

Originally posted by klenger

What was the question?

How much total weight a turbo diesel can haul. I thought it was 16,000 lbs (empty weight plus about 7,500 lbs) I'm told that 23,000 lbs. is the correct figure, which would indicate the truck can tow about 16,000 lbs.



Still not sure about that. I'll have to check it out. Dean, where are you when I need you?

 

[2-ND TIME]

mileage

Fuel mileage for trucks. :-{} That may be all good for you people down south, but up here they really know how to stick it to me:-{} :-{} :-{} They replaced the ECM on the 99 dog diesel and I went to 28 miles to the US gal. Can you spell de-fueling what a gutless &%($)@*&^() wonder.