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Old 08-04-2006, 12:03 PM
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G-Benz G-Benz is offline
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Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
It's a "Cosmoline"-type coating that came from the factory...protects the alloy engine surfaces from corrosion due to exposure to salt air (during shipping).

Funny though, it usually wears off over time...strange to see it so prevalent on a valve cover after a decade!

What I DID notice is the engine in the pic is missing the black plastic cover that covers the cam area...
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