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Low rpm power for better mpg's?
1300 rpm Just a quick note, spent hours and miles with a 600hp CAT trying to get the best mileage...1200rpm seemed to do it. Taking that to my Duramax....I seem to run best mileage at 1300-1400 and its running cooler... just saying- HotPursuit
- Post #13
- Forum: Duramax Tuning, Logging, and Gauges