Now you're talkin' Frank! I love my Chevy 2500 HD D/A 4X4, that I bought new in 2005. It just might be the very last truck I ever get. I have owned most brands and this one has been THE best bar none!Frank C wrote:2008 GMC Sierra 2500HD 4x4, Duramax/Allison diesel.
12 mpg towing, 16-19 mpg non-towing freeway.
My everyday driver, and simply the fastest vehicle I've owned in many, many years.
( @ 6800 lbs, simply can't get much bigger~! )
Mine weighs a bit more as I have the full length "Rack~It" tubular rack for my Kayaks over a cab high Vista brand topper. In the front I hated the bubble gum wrapper thin bumper and put on a 300 lb Ranch Hand Brand super bumper, I feel safer anyhow! I also tote a full complement of off road accessories as well, including a 10,000 Lb Winch that mounts front or rear, High lift jack, several 100' cable, snatch straps, etc. And my 120 gallon tank will make it tip the scales well over 8K Lbs as well.
You should be getting unladen mileage figures of at least 24 though, and I was getting 22 MPG. I have been driving Diesels since the 80's and one thing I have learned is if you put your foot into it all the time, you visit the Gas stations much sooner too, in a Diesel! 2,000 RPM is the sweet spot! You should get better milage becasuse you have the 6th gear enabled. The 2001~2006 models also have the physical gear as well, but with parts and install labor it costs 2 grand, not worth it IMHO!
If you think it is fast now though, try the EDGE Products Chip with Attitude, On~The~fly controller.
I give Corvettes a run for their money these days!
