6.0l vortec vs 8.1l with allison gas mileage
I'm considering the purchase of two different trucks. Has anyone had experience with comparing the gas mileage for a a 6.0l vortec vs an 8.1l paired with the allison transmission?? For my purposes...
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I had a 2001 and a 2004 8.1 crew cab with 4:10 rear end. Both were pulling beasts as I pulled 14,000# 5th wheel with the 2001 and a 16,000# with the 2004. 9 mpg empty around town, 12 best case on hwy empty, and 7.5-8 towing level with minimum wind. Dropped to 6.5 on windy days. I ran 65-70 all the time and kept the 2004 10 years and 150,000 miles. Now have a 2014 Duramax and get 11-12 towing, 15 around town empty and 19.5 empty on hwy. The 6.0 should do a good job for what you intend to do with better everyday mileage. Randu
