Compression Ignition Addict
Join Date: Feb 2008
Location: Covina, Ca.
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Regarding the DTE, the closer you get to empty, the more accurate it will become, assuming it was fairly accurate to begin with. When the tank is full, it will be far from accurate. This is because you can't tell the computer that you have a tank larger then what was programmed by Ford. Once it get's down to the size originally programmed, it will start to function closer to as it does now.
Regarding the MPG, that has never really been that accurate to begin with, especially if you are running a tuned vehicle. Best to just use it as a very rough estimate and calculate by hand for exact numbers.
Regarding a flash to fix these, no, no one has written a flash that will address these issues.
If you do get another tank, before you install it, check to see how long the vent hose is within the tank. If the vent hose is anything like stock, the fuel pumps will shutoff long before you have actually filled the tank. This could be anywhere from 5-10 gallons that you would have to slowly pump before it finally get's to the filler neck. Harpoon it before you mount it.
'08 F250 6.4L Lariat 4x4 CC/SRW fully loaded, special ordered
6" Fabtech 2.25 dual shock lift w/18" AR wheels, 35" Toyo AT's
Avic-Z2 Nav/Stereo w/iPod, Bluetooth, XM NavTraffic
(2) Rear headrest mnt DVD entertainment systems
Banks CAI, Dual Exhaust, Six-Gun, Speed Brake & iQ (test vehicle)
Bushwacker Fender Flares
Ravelco Anti Theft Device
Originally Posted by Rick Santorum
We went into a recession in 2008 because of gasoline prices.