Silica! From dust and sand. While filters trap some stuff on the surface the smaller stuff can eventually work through. As stuff makes its way into the combustion chambers some of it gets past the rings and into the crankcase oil. The oil filter again can only handle so much and catch stuff so small. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Timmy Evens Sent: Thursday, June 06, 2013 11:56 AM To: vanagon@GERRY.VANAGON.COM Subject: Silicone in oil analysis Quick question: why does poor air filtration result in higher levels of silicone in your oil? Where's this silicone coming from? Tim Sent from Yahoo! Mail on Android |
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