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Old 01-07-2016, 06:08 AM   #18
Davidg
Junior Member
 
Join Date: Jan 2016
Posts: 15
Hello Joe; Yep, the 6.4 was a better engine than the 6.0, except the fuel mileage was not great. I've been told that once it's been deleted and tuned, the mileage comes up nicely and the power is phenomenal and maybe even better than the 6.7.
I'm very happy with the power and fuel economy of my 6.7. Prior to this F350 with 3.55 axles, I had an F250 with 3.31 axles. When I drove the truck like grandpa, it would return 23 mpg or better, however the towing mileage was about the same.
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2015 Silverback 29RE, 2016 Ford F-350, 4x4, SWB, CC 6.7 Diesel, B&W turnover ball with B&W 4" extender.
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