RDS auxiliary tank

dennych1 wrote:
I am looking to install a 60 gallon RDS gravity tank in back of my 2015 chevy 3500HD dually. Looking for some answers before purchasing.

1) can you fill your main tank as you drive YES
2) will it stop filling when main tank full automatically YES
3) does truck have a problem when fuel gauge always reads full until RDS tank is empty. NO
4) Do I add a fuel filter and water seperator(any suggestions.) NO

Thanks for the help
DEnnis

I have a 91 gallon RDS tank in my truck. Works great. I can turn it on and off at the tank. On the road I just leave the valve open and it feeds the main tank as I drive. I only add fuel to the RDS. It also has a tool box on top that is real handy. I can tow from Tucson to San Diego and back (900+ miles) without having to stop for fuel.