Hey I have a 89 Mazda 626, Auto Tran, 2.2L-No Turbo. I bought this car and discovered oil in radiator...I assumed it was head gasket so I changed gasket, pressure tested head and put it back together ... even though I never had any water/coolant in oil, good compression and car actually ran quite well. So now I have a great running car, with new head gasket with oil in coolant.
Big note here...the car runs good, temperature is steady, and there is NO coolant in oil...also the first time I discovered this was two days after completing repairs...the oil in overflow is NOT mixed or frothy...almost clean oil is coming out of the radiator overflow. I can hear the upper hose drawing fluid back to radiator and I think it is sucking oil back with the coolant as it cools. Any help here would be greatly appreciated.