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Dynamohum Dynamohum is offline
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Join Date: Jan 2008
Location: Midland Ontario Canada
Posts: 173
I would take an oil sample and send it and your chunks out for analysis. I would also cut the oil filter apart and have a look whats in there

Assuming that your entire oiling system (including front mounted cooler, lines, oil tank etc. ) were properly cleaned during your rebuild and it is not some residual material floating around from before or from the cleaning tank. And assuming that your doing a cool down before shutting down the motor after spirited use, I doubt that you would be experiencing coking from this oil. If I thought that I would be contacting Shell about it pronto. Were you or had you experienced any sines of coking previously?

Personally I follow the advice in Wayne's book and flush it all out several times Consecutively with a Dino based oil, changing oil filter each time. Wait till your engine is broken in to run a Synthetic oil.
Thank You for your time, Paul. We do because we can.
87 911 3.2 (Turbo conversion, build in progress, Thermal Barrier Coatings, High Pressure Dry film coatings) Modified heads, boat-tailed case, ARP hardware, OBX Header, 930 clutch disk, G50 Trans
89 5.0 Mustang convertible (For Sale)
Old 02-21-2009, 04:38 AM
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