Join Date: May 2011
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There is one good way to improve your MPG. Drive slower. Were you driving 75 or 80 last time?
I have 3.54 gears. Driving my truck home I got 23.5 and 26 mpg. The previous owner said he got about 17. The only difference was driving style. I was driving at 54 mph and 1,500 rpm. When I was close to home I cranked up the speedometer to 70 mph and about 1,900 rpm. That got me about 18 mpg. Driving these trucks you either can have speed or mpg. Go fast and use more fuel or go slow and take more time.
You can try driving at different speeds. Perhaps driving 65 or 62 will net you better mpg than driving 67 or 70 would. For your best mpg 1,500 rpm is probably best unless you are loaded.
I am not sure that a factory mpg computer would work. However, one person said that a plug in OBD2 mpg gauge worked for them. It did however take some adjustments to have it give any useful readings. I am not sure if it ever read accurately or not.
1997 3500 club cab 3.54 gears towing & camper pkg. Still stock with a built transmission at 120k. 4" exhaust, 4kgsk, and exhaust brake waiting for installation. 37337 upgrade. Still need ideas for improvements for hauling 15k fifth wheel.
Last edited by country_hick; 11-11-2013 at 01:39 PM.