If you’ve done the 26 to 33 or are thinking about it, what’s your use case to justify it?
I’ve been mulling over the idea of swapping the 26-gallon tank for the 33-gallon on the ’25 RAM 1500, and the deeper I dig, the less straightforward it looks. On paper, it sounds simple—buy the tank, maybe a pump, add a strap, bolt it in—but in reality there are some hurdles:
• Fuel gauge accuracy – It’s not just the tank. The sending unit and calibration have to match, otherwise the gauge won’t read right. Right?
• Electronics – On the ’25, the ECU is locked down by the CAN bus architecture, so that might prevent the gauge from being reprogrammed and it would never read right and may give faulty low fuel or worse, no low fuel warning at all. Right?
• Dealer resistance – Most dealers don’t want to take this on because it’s more than just a physical swap.