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Old January 12th, 2013, 08:22 AM   #11
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Originally Posted by 55.0.0 View Post
I got both 2000 5.3 gmc but I got a 2002 hd crew cab with a 8.1 and I've pulled my ranger with both and my 30 ft 5th wheel with my 8.1 and love the power of the big cubes and get 8-9 miles to the gallon I won't have a 6.0, go big same gas millage have extra power
How is fuel mileage in the 5.3 compared to 8.1l pulling same setup?
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