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Just finished an 860 mile trip pulling a new Yellowfin 38 center console fishing boat with a new 2006 F250 shortbed crew cab Laramie 4x4 Powerstroke automatic. The trailer had Kodiak electric/hydraulic disc brakes on all six wheels. Out of curiosity, we weighed the rig at a truck stop, and the trailer axles alone were 12,800 LBS. Total truck/trailer combined was 21,460 Lbs. We used the Tow Command with the gain set around 3 and the brakes worked GREAT. No bad habits. With the gain set up around 6, the trailer brakes alone would stop the whole rig fairly quick. We tried this to see just how much braking force the trailer was applying. About the second day, I got out the owners' manual and read the towing section. It does say to not use the Tow Command with electric/hydraulic brakes, yet it does NOT say why not! ????
[/ QUOTE ] Glad to hear it works well with a '06 model. With regard to the owner's manual. Who knows when it will get corrected. Look at how long the manual said that the 4R100 tranny could learn your driving patterns and adaptively adjust the shifting. Of course, this only applied to the V10 gasser, but there are still owners out there maintaining that their shifting changes after disconnecting the batteries etc.
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The truck managed 7.5 average MPG (hand calculated, dividing the gallons by the miles driven between fillups). On the trip down empty the truck was getting almost 18 MPG highway.
[/ QUOTE ] Empty sounds great but your towing mileage sucks. How fast were you driving. I manage nearly 12 mpg towing 26K# at 65 mph!