Wow, same rig as me and same fuel economy. Thanks for the info. My rig seems to prefer 1850 RPMs which is 69 MPH. At that speed it has tremendous torque and does not seem to struggle on inclines at all. Amazingly at 60 mph or 1500 rpms it falls on its face when meeting hills and inclines. I also noticed it regens more frequently when it is hot outside. I regen'd 3 times in 500 miles coming thru Nebraska where it was 102 degrees.
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quote:Originally posted by Lee F.
2008 F250 with 6.4 and 3.55 towing a 2955RL at 65 mph I average about 8.5 mpg. If I slow down to 60-62 it improves to around 9.5-10 mph..
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