Dont know why the computer quit printing,but here is the 'rest of the story. and sealed the tank from releasing the propane. Here in Tx. we use butane in the summer and propane in the winter because butane freezes. Having gas and propane relieves you of being stranded without a source for butane. The carburetion for propane here in Tx. was about 600 plus the tank. In the car, I had a 30 gal. tank with the regular gas tank. If I wanted both, I w`ould not hesitate in having it installed , My opinion only, Max