I assume this is why 2 valve trucks/suv's/vans are desirable. They go for a ridiculous price, atleast around here. I'm waiting for someone to try and offer money for ours; they better have deep pockets, lol. Uses a little oil, but going up and down these mountains, it's expected. Have plenty of Edge 0w30/40 laying around and that's what went in it. Consumption is next to nothing now, and runs smoother.