I dont mean to sound like a dick but where are you getting that information? The pcv routing has no contact what so ever with any kind of coolant. The fact that my engine oil is perfectly normal shows this all the more. Even still how does oil comming through the pcv constitute a bhg? The pcv system routes 2 ways; 1) from block to head, rubber line. 2) The two vavle covers straight to the intake. My coolant never rises temp, never gets low.
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