Extended range fuel tanks - who has one?
I'm looking into replacement fuel tanks. I'd like to hear from folks who have replaced the existing tank with a larger replacement. Since I haul a TC, can't use a bed tank like I did when I had a 5'...
Forum Discussion
djgarcia wrote:
When you have Transfer Flow install an auxiliary fuel tank they recalculate your new auxiliary tank to your current fuel gauge on your dash. i.e. full= 60 gal. 3/4 tank= 45 gal. etc etc etc.
Maybe for your truck. Based on my research GM's computers can only be set to a tank size GM installs at the factory (26 or 34 gallons for my year). Supposedly there's a way to use EFI Live to edit the tables and re-calibrate the fuel level sensor voltages so your fuel gauge displays accurately. Otherwise gallons used would be accurate, but gallons to empty and the gauge itself would be significantly less than accurate.
