Thanks for the reply. I only mentioned it because my Father used to rebuild Transmissions, and he would get a few false
"come-backs" for just this reason. The customer's rear main seal was usually the reason for the spotty driveway.
I like the "oil clutch" statement.

Too bad the leak isn't in the intake - it could keep the upper end lubed like Marvel Mystery Oil (I still have a MMO canister on my firewall)