A fluid wagon.
RollingStockPrototypeFluidAmountfalsefalsebooleantruefalseuint8truefalseMust be 1, 2 or 3.
string | Array<string>truefalsePumps are only allowed to connect to this fluid wagon if the pump's fluid box connection and this fluid wagon share a connection category. Pump may have different connection categories on the input and output side, connection categories will be taken from the connection that is facing towards fluid wagon.