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Old November 7th, 2011, 03:00 PM   #34
circling the drain
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Join Date: 09-20-06
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Originally Posted by Haggar View Post
Those I know with 5.3 Chevys usually do a touch better, but do run higher RPMs, 11-13mpg towing similar.
that's interesting, my half ton gas truck experience was with my 2007 5.3 chevy, non 6 speed. But I was getting 8-10ish with the jeep, and 12-14ish with the boat (both lighter and more aerodynamic then the jeep)
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