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International Automotive Technicians Network
Re: Oil in Coolant
Posted to Technical Discussion Forum on 5/15/2018

I also worked at Saturn way back when the head issues occurred. I also relived the issue recently on a few AVeo engines. Engine oil coolers tend to leak.

I used regular coolant flush on the last one, Kleen Flo 10 minute flush and it did as good a job as Casc... Login to read more.