15.9 MPG today

[CUMMINZ]

With 9000 miles and AV flash yesterday I drove 65MPH for 100 miles on Interstate with cruise all the way and got 15. 9MPG hand calculated. The overhead was mostly 17. 0... Best I have gotten so far. :-laf

 

[tom sweeney]

i've shown very similiar results hand calculated... about 17. 2... .

 

[Harlan]

Mpg

I was advised that I need a G30 and reflash on my 6. 7 and it wood not hurt my MPG. I wood love to get 15. 9 but have hurd the G30 and flash will drop my MPG. Have you had the G30 on your truck and was there a lose of MPG. I have all the power I need but I tow a 15,000 5th and MPG is a real problem.

Any one else have any thoughts for better MPG, this is not good on a $50,ooo

Truck. Got a lot beter MPG on my 5. 9. Or is this progress.

Harlan

 

[Garlic]

Mine gets 15. 5 - 16. 8 Hand calc. consistently (Not towing of course). I bought it in July and have not been to the dealer or even notified of any flash or recall. Just went to 7,000 mile today and only 1 oil change at 4,200 miles. When we tow the 5er (11,000 lbs. ) we get average 12. I have seen 20 MPG (Hand Calc. ) over 2 tanks and 800 miles, But that soon went away.