I just got my Mercedes G350 diesel. It is an SUV with an extremely high ceiling inside so I am thinking about building a tank that fits behind the rear seat. My fuel tank access is directly under where the tank is going to be. I am thinking about running a hose from the bottom of the tank inside the car into the top of the stock tank via the access hole. Basically I am thinking if I add a vent to the top of the new tank the fuel should flow from the tank inside the car to the tank under the car. Will this work? Anyone tried it? I have plenty of room for about 30 gallons this way, I am running a blend so I don't have to worry about a heated tank and keeping the fuels separate.
Rusty