2007 Duramax 6.6L Turbo

[Duramax1]

Are we talking about 25mp US gallon or Canadian gallon?

 

[caissiel]

Ok, sorry if I took it wrong, but in Canada we use Imperial Gallons, and my best millage has been averaging 25MPImpG. which is 6/5 the size of a US gallon.

 

[porthole]

Are we talking about 25mp US gallon or Canadian gallon?

Me - US gallons

 

[caissiel]

I realized that, I usualy adapt all my milage to USGPM, We use KM's here and its easy to adapt to MPIMPG, I just devide the L/100KM into 282, So as to read 10L/100KM it reads 28MPG Imperial. So KMto US Miles would look like 282X5/6 or 235 devided by L/100KM so 10LHK is 23.5MPusG, The Scangauge can be adopted to US or Metric so when I fillup I put in the tank readings and it calibrates in both usg and Litres. By putting in the Cost per gallon it gives me the cost per miles to.

 

[bill40]

I ahve found that by using setting #3 and the cruse set on 1800 to 2000rpms ( about 60) I get 23.2 all highway about 18 around the area. before the Banks (at 24000 miles) the best i could get was 14 and 18. Like Duane my dash read out is not that far off the actual. I reset every tank. If it was a SRW probably be a little better. But being what it is not all that bad. We averaged 12.3 for our last trip ( 9000+) of all most four months of hot and cold weather. The BC is a tad over 28ft and as we all know the tend to push a lot of air so anything over 7.6mpg ( what I got on my V10 Ford)in my opinion is good. Just turned over 78000 miles and is just getting broke in.

 

[caissiel]

I find that our 3500RL is a great trailer to haul, with 110 Lbs in the tires sure makes it light on the road, much better then the previous trailer with 15" wheels.

 

[bill40]

Have to agree, and it is very easy to put into some tight spots. If GM would improve the turning radius of a one ton it would almost be perfect, but I guess we can't have everything.

 

[newbie]

There is a rumor on Diesel Place that GM will be coming out with a standard (short) bed 3500 with the 2011. Other cool changes like a factory exhaust brake. Also larger tires and rims (which may translate to larger brakes). Seems to be a reliable source.

John

 

[buckeyebob]

i use dsl from walmart to keep fuel from jelling and i put more than recomended and my lie o meter went from 14-16 in town to 18-20,now if the guage was lieing it would still be the same.i mean my mileage really went up,on road to cabelas in michigan i got 22.5.i have 18,000 miles on 6.6 d/a 2007 new style.i jelled fuel filter 3 times last winter so i use additive no matter where i get fuel.it says it boosts the cetane level.my son in law has a ford king ranch dually and he used additive this summer and got 16 on road and was thrilled!!!!we always have that ford vs gm arguement,but just buy one of the 3 real american brands is all i ask. buckeyebob

 

[gonervn]

John, I have a 2004 Duramax 2500. I changed to a 4" exhaust AEM intake and Bullydog downloader. I consistenly get 17 - 18 around town and 20+ on the highway not towing. When towing my 3670 Bighorn I range between 11 -14 depending on speed and terrain. With the downloader I have found my most economical speed to be 67.

 

[jmaguire]

Thanks whosack. that is exactly what a friend of mine told me. He has a Dodge, and didn't know if the GM was any different.