SkooterG
Purveyor of Crooked Facts
I'll call it an anal-retentive thing and say it it completely unnecessary. But if it makes you feel good have at it.I fill the filter and then allow the filter to absorb the oil a couple of times. Goes on without leaking any oil. Why?? Eliminates the brief period of time on initial start-up where there is nearly zero oil pressure while the filter fills. I figure that is a good thing.