/forums/images/graemlins/eek.gifI musta lived under a rock all my life! I've never hear of them! /forums/images/graemlins/eek.gif But they must work, cause on Paul Harvey's rest of the story today, Kleenex was invented by accident as a filter for our military guys in WW2, agains't chlorine gas. So I don't see why not, as a oil filter!