I would agree that the 4.7L is underpowered. I have a earlier edition also with the 4.7 and pull a 3124KB. Pulled it 3000 miles this past winter to AZ and back to TX. Averaged less than 14 mpg with my speed at between 60-62MPH. Any more MPH and my MPG dropped quickly. Combination of elevation change all the way there. I wil admit, I had a 650lb motorcycle in the truck bed and two weeks of camping gear.
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rvcycleguy
TM-2002 3124KB
TV-2003 Toyota Tundra V8 4.7L. Fact. Tow Pkg, air bags
2006 Suzuki Boulevard C50c Motorcycle- crashed- parted out
1956 Royal Enfield Bullet 500 Motorcycle-sold
2006 Harley Road King
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