Hello dear community, I have here an offer of a large Pick Up dealer available. Here it is about a Suburban 5.3 which I want to have immediately converted from the dealer to LPG. He immediately, without catching up, pointed out the problems with the valve seats and offered a corresponding solution, hardening the valve seats. I find it for the first time nice that is pointed out at all possible difficulties. I am still unsure. Are there any experiences on your part about this Motor or LPG in the American? Can one of the LPG drivers say something to me about a realistic consumption with LPG and a 5.3 Vortec. I would be very happy about that.