Originally Posted by
Steve W.
I fully understand the concept of a dry sump system. What I DON'T understand is, ... if there is a separate reservoir to hold the oil, how is it leaking out of there, back into the engine? There is an oil pump that draws out of the reservoir to supply the engine. There are multiple scavenging pumps to pump oil from the engine back to the reservoir. You stop the engine, the oil stops moving, too. Or does it? Apparently oil slowly moves back to the engine sump, then has to be warmed up for an ungodly length of time and circulated back through the reservoir before its quantity can be checked.
THAT is the part that is so hard for so many of us.