quote:Originally posted by BLK98MK8LSC:
I wasnt picking on BMW but on the VOC emission regs that dictate sealed up tight crank cases. They trap moisture to the point of build up. Does depend on conditions.
I know, I just didn't see the need to quote the whole post
You may find this of interest:
"To cool the piston crowns directly, nearly all BMW engines are equipped with oil spray jets that moisten the piston crowns with engine oil."
I wasn't aware they had that feature.