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Gone but never forgotten
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Hook up the PCV valve. There's always a certain amount of blow by past the rings. The gas fumes from this blow by will be stuck in the crankcase and will mix with your oil, breaking it down if you don't get the fumes out of there ... the job of the PCV system.
 

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Gone but never forgotten
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25,239 Posts
Find a new mechanic /forums/images/icons/wink.gif
 
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