Rico, I talked to Bill about this in chat. My diagnosis was based on experience with an N/A 3800 in a 95 olds delta 88. Had oil in the coolant, not red, grey. LIM gaskets were toast, did lim and uim gaskets flushed the coolant system and have run the car over 20,000 miles with absolutely no problems since. I understand the coolant system is under pressure, I can't come up with any other explanation for the problem though, if it was head gaskets the oil would have showed back up in the coolant, it hasn't.