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Re: GM 3100 oil? In coolant. Dexcool sludge
Posted to Technical Theory Forum on 8/8/2018 1 Reply

Tom thanks for pointing that out. I must have been tired and not thinking straight at the time I replied. There are no pressurized oil journal going through the head gasket on this design. My thought is that the oily appearance of the coolant is caused by fine... Login to read more.

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