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FSA1673 · 02-25-2014, 09:13 PM

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.

02-25-2014, 09:13 PM	#15
FSA1673 Junior Member Join Date: Jan 2010 Posts: 81 Likes: 0 Liked 12 Times in 6 Posts	Re: F150 5.0 vs F250 6.2 for towing 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.