Posted by Ken in MN on November 27, 2007 at 16:38:42 from (64.136.49.227):
In Reply to: 2003 GMC 2500HD 8.1L posted by Matt Weltz on November 27, 2007 at 14:49:13:
I have an 03 2500HD with the 8.1, allison, ext cab shortbed 4X4. The best I can get for mileage around here in north central MN is high 10's. Last july The wife and I went to southern MO on vacation, down there I was getting around 13.8 mpg, with a best of 14.9. As we were driving home, the closer we got to home , the worse the mileage got. Still have not figured that one out. My truck will do slightly better with 89 octane versus 87. I have never used a programmer, but have heard that hypertech is not a very good one for these engines. Check out dieselplace.com, there is a section for "gassers" that has some useful info.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let�s make one more addition to our series on hydraulics. I�ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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