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#1 |
Junior Member
Join Date: Jan 2010
Posts: 83
Likes: 0
Liked 12 Times in 6 Posts
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I had a 2008 5.3 GMC Sierra Crew Cab. I got around 8 mpg towing with it driving 60 to 65 mph. I never felt overly comfortable leaving it on cruise as it wanted to rev too high. It was a 7000 GVW truck.
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