Quote:
Originally Posted by Fish
I've got a 2 step stool I keep in the back of the truck.
I also need it to fill up my RDS auxiliary tank and to pump from the auxiliary tank into the main tank.
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I have the 2 step stool also to fill my aux tank but have the gravity fill instead of a pump.
OP will need a longer gauge with a reverse head to check PSI. My 2019 F350 dually has built in TPMS.