i ussually let mine soak in gear oil for a few days while i send the block out to be cleaned and machined.... which i do after balancing.... that way i get everything garuanteed lube.... then i do an oil change after my 20 minute break in..... that way i get rid of any clumps of assebly lube in the pan.... on race application i also pull the pan and check the pickup screen for metal debree or grease globs