Engine/Transmission (1998.5 - 2002) Miles Per Gallon

[Wyomingcowboy]

What is everyone getting? I get about 19 on the intersate at 75 mph (2200rpm's) with the hypertech on level 3. Before the hypertech I got 16. (I do my calculations the real way as my overhead console tells me 24mpg!) Would I do better with a smarty?





What are you all getting?!?!????????

 

[PBliss]

I get 16. 5 ish at 75 mph edge J/A on level 2. Hand calculated as the overhead says 22-23.

 

[Crash&Burn]

I get 17 to 19 stock. . hand calk.

Used to get 20, 21 before ULSD... .

 

[DWeiler]

Consistant 16- 18 in the city and 20-22 on th highway,as long as i keep the highway speed under 2000 RPM. DW

 

[darkhorse]

On summer fuel i get 19-20 on back county roads & about 26 at a steady 65 mph interstate cruise. no heavy loads. The worst I ever got was winter with tire chains & busting snow drifts in 4wd. That came out to about 14.

 

[WardJ]

Consistant 16- 18 in the city and 20-22 on th highway,as long as i keep the highway speed under 2000 RPM. DW

About the same for me. I have a set of 275's in the garage, just waiting for some warmer weather for me to install them. I hope they give me a bit more performance at no expense to mileage. I know, it depends on my right foot.

 

[jkidd]

70mph I can squeeze 22mpg for a long fwy haul.
70mph with 4. 10 I get 20. 5

at 80 I get about 18mpg
I average 17 for long term including city and some towing

 

[Wyomingcowboy]

70mph I can squeeze 22mpg for a long fwy haul.

70mph with 4. 10 I get 20. 5



at 80 I get about 18mpg

I average 17 for long term including city and some towing

20. 5 with 4:10's?!?! Maybe I should take driving lessons!

 

[DBuchheit]

22 MPG at 70 MPH average, hand calculated. Best was 24 MPG.

 

[NHelmer]

20. 5 with 4:10's?!?! Maybe I should take driving lessons!

Sign me up for that class also. My best on the highway has been 18. 8 mpg using hand calc. That was turning 2100rpm @ 70mph. Most of my driving is in town and I used to get about 14. 5 but now with Winter ULSD it's down to 12. 3

 

[JKinney]

70mph I can squeeze 22mpg for a long fwy haul.

70mph with 4. 10 I get 20. 5



at 80 I get about 18mpg

I average 17 for long term including city and some towing

Are there still seats available for this class? I got 19 once not going over 50 and boost less than 5 psi

 

[2-ND TIME]

The 275's gave me better milage then the factory ones. The 300's are giving me a couple of miles less.

 

[johncameron]

Would I do better with a smarty?





What are you all getting?!?!????????

I get 17-18 on the highway average, best yet was 21. 7.



I don't think MPG would be any better than what you've got but the smiles per mile would go WAY UP

 

[Jed]

20 to 21 mpg if I can keep the rpm @2000 or less which is about 72 mph in my truck. If over 2000 it drops to 18 or 19mpg. When towing anywhere from 10 to 12 mpg depending on the hills. If I could keep it @ 1900 for a whole tank I should get better.



(2nd time) The 275's gave me better milage then the factory ones. The 300's are giving me a couple of miles less



what brand are the 300's that you refer to?

 

[johncameron]

(2nd time) The 275's gave me better milage then the factory ones. The 300's are giving me a couple of miles less. what brand are the 300's that you refer to?

RV275's and RV300's are the same injector.



John

 

[2-ND TIME]

Mpg

The Rv 275's were out of Vancouuver area ( they have since dropped out of favor with me for they chipped the pinion in the rear diff and tried to say it was something else or not there doing. )The other one was out of Edmonton AB. The 275's were from about 4 years ago.

 

[JimThomas]

I get 13 and im still trying to figure out how every body else gets these high #s no matter how I drive thats what I get

 

[2-ND TIME]

First what year is yours? Are you getting lots of smoke? Air filter checked etc. diff ratio ? My overhead display usually is around 10 to 11 L/100 which is the reason that it is gutless. It has been at 7. 6 L 100. Not at this time of the year although. You have the opposite porblem as mine does. Keep tring tofigure it out.

 

[GDMRTN]

17. 5 average when the truck was stock. All the upgrades and still 17. 5 @ 70mph. Yep, 4. 10 gears!! Highest ever was 19, didn't go over 55mph and that equals a long boring slow drive!! Happy cruising y'all.

 

[Jed]

The Rv 275's were out of Vancouuver area ( they have since dropped out of favor with me for they chipped the pinion in the rear diff and tried to say it was something else or not there doing. )The other one was out of Edmonton AB. The 275's were from about 4 years ago.

I am sorry but I do not understand your post.

Am I to understand that you installed 275rv injectors in your rear differential?

Then you replaced them with 300rv injectors and lost 2mpg?

Are you just being humorous?

Changing from Bosch 275 injectors to Bosch 275 injectors should not have changed your mileage by 2mpg was there some other factor?

(In the states we normally install injectors in a 24 valve in the engine not the rear diff. )