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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
One time I wait until the reserve light come on,drive the truck for couple more miles and then fill up the tank. The most I can put in there was 18 gallons! Is there something that I have to check?
Yeah, the computer keeps a pretty large reserve, I have a 26 gallon tank, the light comes on at with 6 gallons left in it, and the needle is resting on E with 4 gallons left. I would imagine the reserve is set higher on the 5.9L.
I never pay attention to the overhead console except for temperature.
When my gas guage shows 1/8th of a tank i can put in 22 or 23 gallons, so my gas guage is right on. Usually i fill when it's at 1/4. It will take 19 or 20 gallons.