Compression Ignition Addict
Join Date: Apr 2010
Location: Las Vegas Baby!!
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I have the 3.55 gears with 20 inch wheel package and my speedo is off about 3%. The truck goes less distance/slower than is says it does/is. I have verified this with GPS also.
Also - the fuel computer in the dash is usually off by about a gallon. The truck uses more fuel than it says it does. I have been experimenting a little and found that if I just go to the next dollar when refueling, the fuel computer is closer than if I stuff the tank. I think the "extra" fuel I put in when I top off does not get counted by the computer?? Only problem is - with only a 25 gallon tank I have to stuff it to get anywhere!!!
Ford has some work to do with the gauges and senders. They are not very accurate in my truck.
2012 F450 Ultimate Lariat pkg, 4X4, FX4, 5th wheel prep, camper pkg, 40console40 seat, Ingot Silver and Black guts
Reese Elite 18k 5th wheel
DuraFlap flaps all 4 corners
60 gal aux tank in bed
7.4 mpg as shown @ 70mph and 25740 lbs gross!!
2012 Fuzion FZ310 Monster Edition Toy Hauler 12,500 dry 16,500 loaded to play. 3100/3500 pin weight
Breast feeding is a hard habit to quit
Last edited by mowdoc; 01-19-2011 at 06:02 AM.