Fuel MPG and 600

[DGFoster]

I know this has been beat to death,but has low mileage been worked out?

We are thinking of getting a second truck for the wife and since I don't think there is any new 555s around anymore it would have to be a 600,any thoughts would be helpful. . Thanks

 

[GGottier]

4:10's will give less mileage than 3:73's, Unless your planning on bombing it your looking at 12's around town and at best 16's on the highway with 4:10's...

 

[klenger]

I've been getting 20+ driving empty since I had the TSB for increased milage done. I am very pleased.

 

[Buzzer]

I have 4:10s and get between 14. 5 and 15 . 5 around town and roughly 18 to 20 highway. If I had it to do again though I would go with the 3:73s for the better top end.

 

[mikepvg]

I've been getting 20+ driving empty since I had the TSB for increased milage done. I am very pleased.

What TSB# is that?



Thanks

Mike

 

[klenger]

http://www.klenger.net/dodge/3rd-gen-reference/tsb-18-037-04_pg1.pdf

 

[CAgnoli]

Ken, do you have an AFE as well? What was your mileage prior to the flash? I'm getting mine done next saturday, and I can regularly get 17. 5 to 18. 5 on the highway on #2 deisel fuel. I've been thinking about installing an AFe Proguard 7.



Thanks!

Chris

 

[PJ]

My latest highway mileage @ 65-70 mph is 18. 8 and around town has hit 15. 2 mpg. Not the greatest but its alot better than a big block Chevy. Hopefully it will improve with age and miles.

 

[bombero]

4. 5 600 W/6sp, 4X4 SB< SRW 3. 73 and 4300 miles. 13. 9 around town. 18 on highway at 70mph. TSB not done yet

 

[Donn]

4. 5 600 W/auto 4X4 LB 3. 73 10,000 miles TSB has been done AFE Progaurd 7 I pull a 3000 lb single axel wells cargo construction trailer daily to work. I drive less that 5 miles to and from work pulling the trailer. I get 12. 5-13m mpg . Pulling my Boat approx 10,000 lbs. In mountains at 5 to 6k feet altitude, I get 13. 5 mpg. Empty freeway driving (still at 4000K altitude and 70 MPH the truck gets 17. 5 MPG. I may try a bully dog power pup to see if it improves the MPG, but it is still over double the milage that my 96 V/10 would get.

 

[DGFoster]

Thanks for all the replies,seems the mileage isn't much different than my 555 and that is a good thing...

Makes the choice much easier. .

 

[Bugracing]

took my first highway trip this weekend and had the cruise control set to 75mph. including some city driving around Chicago with some stop & go, I averaged 17. 5mpg (hand calculated and overhead read the same).

I have the 3. 73 R&P and the six speed.

 

[lcrawford]

I have a 04. 5 and I get 17. 5 avg towing 7k 13 mpg I have babyed it to try to get better but 18 was the best so far. Im still better off than with a gas truck

 

[JStraw]

Empty on the highway;



65mph = 19. 8



70mph = 19. 3



75mph = 17. 5



80mph = 16. 4



Empty in city;



15. 5

 

[mberry]

Mine is almost exactly the same as JStraw's numbers. Hand calc'd yesterday after filling up: 15. 38mpg almost all city.

 

[JeffJackson]

I'm getting about 17mpg in town with my '05 (6 spd, 4. 10 gears, 315 BFGs). My highway mileage is only about 8mpg, but I haven't been on the freeway without the trailer (10k toy hauler) yet.

 

[KB0OU]

I get 16 going back and forth to work, 19-20 on the hiway, if I haul 10,000 lb. or so it gets 12 , not bad, it has been doing it for a long time. 382795 miles today. Ya know what the engineers say,,, it takes so many BTU to move your BUT. Depends on how much BUT you have. Oo.

 

[DGFoster]

http://www.comcast.net/News/BUSINES...ews/b93288ae-3476-4264-add0-9ad0695879fa.html

 

[Edgemann55]

Only had mine for a week. First tank I got 17. 7 both hwy and city driving. Sure beats the 11mpg I got from the 8. 1 gas GMC I traded.

 

[roperteacher]

04. 5 6 speed 3. 73 100% stock,



City, empty= 20. 1

Hwy Empty @ 65-70 MPH 22. 8

Hwy Pulling 7k Trailer 15. 8



21,000 and getting better. No flash what so ever. All hand calculated, Overhead usually reads a bit better than actual.