How can a propane tank be any heavier than a full gas tank? Sure the tank is heavy, but so is a fuel tank or fuel cell with 15-20 gallons of gas in it. Does anybody else offer propane conversion kits for toyotas or is this the only one? Sure looks like a great alternative to swapping in fuel injection on a 22r.
Most of the tanks I have seen are made of aluminum, I bet you that they would be about the same weight full as a full tank of gas.