toolman, if you could post this recall letter, I'd appreciate it. It's funny that they state that crankcase gasses can be corrosive to rubber. My wife's car has a GM Ecotec engine that just runs crankcase gasses straight back to the air intake via a rubber hose (no PCV valve). After only six years this rubber hose was absolutely worn out (brittle, with large cracks running down the length of the hose). All other rubber hoses underneath the hood, such as radiator hoses, all still look brand new. I thought it was odd that only this hose would wear out, but if crankcase gasses are corrosive, this would explain it.