05 Duramax

[Cummins]

I think I'll register on the Cummins forum site now I am determined to find a better mileage diesel,KY

[SixInARow]

That's cool, it's a hoppin' forum. This Duramax forum is extremely slow. I'm the top poster with only 116 posts. I have over 1500 on the Powerstroke forum, where I spent most of my time when I had my PSD. I'm on the cummins forum a lot now, under the name CumminAtcha.

[TYREBOYZ_DEMAXIN]

i bought a 06 lbz crew cab short bed about 9 months ago,stock the best i got was 16 on the highway running empty,after 8,000 miles it jumped up to 17 and about the same time i added a ppe programmer and 5" turbo back exhuast and so far the best yet 23 on the open road,it now has 40,000 miles on it still runs like it was new only better.

[scout69]

I have an 05 with 33x12.5, cold intake, 4’ exhaust and the Edge w/ attitude
My speedo is not calibrated and hand calculated MPG is 14 – 15 HW. Towing my 29 ft TT 10 - 12 MPG