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I just bench broke my new engine in (aprox 30min in a couple of heat cycles all above 2,000 rpm) With rotella oil and a bottle of zink additive. Every thing ran perfect and sounds great..

Today I dropped the oil and there was zero shavings on the magnetic oil pan bolt but there was a small layer of gray /sliver jello like substance. Im guessing it is babbit or the zink additive ect .. oil did darken up some also but looked real good ...

Is this normal ?

thanks alot ....
 

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Just a word of caution when checking the oil drain for shavings, you really need to cut the filter and take it apart to see if there were any shavings or not, some are so small you would never see it at the magnet.
 
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