Oil in Water Coolant The Comprehensive Guide to Root Cause Analysis

This would allow coolant to leak through over time, and the water would drain down through the rings down to the oil pan. Diesel engines were ... I'd say heat exchanger is most likely. From what I've seen, head gasket is more often coolant in oil rather than oil in coolant. I just replaced ... It may be pushing oil into the system down in the waterpump area where maybe a gasket isn't sealing. I think that's the only pressurized oil ... Engine oil in coolant! ... Yikes. Not a common issue. My suspicion would be head gasket. Did you buy this car from a dealer? ... That's bad! I'd say say flush the coolant with distilled water first the refill with 50/50 and you should be good to go. I second replacing both of the gaskets. Be sure to ... A coolant/oil leak at the oil cooler happens occasionally. You can read about them on Youtube. So, it remains a possibility for your engine' prob, but generally ... Re: Oil in the Antifreeze (coolant) ... The info on the Egr cooler is that it has a water jacket or only water pipes are on it, no oil. So if the ... Check your transmission dipstick for possible coolant contamination, also. That "film of oil" in your coolant overflow tank may not be that much ... A bit of oil in the coolant does aid the water seal on the pump but a lot is a problem. If you have antifreeze in the coolant it will breakdown ... Coolant and oil mixing is a bad sign. This is because it usually points towards the failure of an important part in your engine/cooling system. An oil/coolant ...