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Oil filter analysis

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Old Dec 12, 2006 | 07:56 PM
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Default Oil filter analysis

Hi folks. I just cut open my filter after about 2 hours of run time. There is some greyish stuff on the bottom of the can. Is this the GM breakin material (zinc or moly)? What should I look for in the paper?
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Old Dec 12, 2006 | 08:14 PM
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Look in the paper for chips, chunks, or filings. Use a magnet to try and figure out what the filings are (if any). Big lumps are bad.

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Old Dec 12, 2006 | 08:34 PM
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Grey goo is normal on a new motor. It's just assembly lube. Filings can be bad.
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