Oakie:
Thanks for the information on the one-way nature of the filter. I thought that was the case but wasn't sure.
The pre-lube pump I was referring to is set up just like an accusump in that it electric and turned on before engine start to pre-lube. One of them is located at:
http://www.espperformance.com/rlelec.../indextest.htm
There is a member of CC (PeterK) who uses the turbo model of the pump that runs for about 5 minutes after the engine is shut off to prevent hot
oil from coking internally. Not a bad idea but the system runs about $500.00.