I use to be a branch Manager for a Hyundai Forklift dealership here in Houston. I can tell you from my dealings with those engines was one that I would like to leave behind me. They always had some kind of fuel problem that was controled by the computer which could never be fixed without in most cases changing out all of the components. We could never send one out on rent or sell one without having some kind of fuel problem (LPG). Another commom problem was cylinder heads kept blowing the gaskets, this was really a bad problem because of the head was always screwed up.