Oil Contamination in Water Coolants A Practical Guide to Remediation and Prevention

Run the engine from cold to hot with the coolant cap off. Watch for bubbles coming up in the tank. If any bubbles you have a blown head gasket. Consider what happened, oil and coolant mixed and the mixture permeated through every oil passage in the engine, likewise it likely entered ... If your car's oil and coolant are mixing together, it's usually a case of having a blown head gasket. So there two things you need to look at. There are 2 oils that can get into the coolant, engine oil and transmission fluid. It's important you ... 1, OIL/water pump, 2, Head gasket, or3, heat exchanger. Compression test, borescope inspection and leakdown testing may rule in or out head ... To get oil in the coolant, the leak has to be where the oil pressure is higher than the cooling system. This is almost never the head gasket. My ... Coolant reservoir was overfull and also oily. Radiator, on the other hand, was not full. Needing to leave right away, I topped it off with water ... 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! Why is there oil in my coolant? ... The presence of oil in a vehicle's engine coolant can be an indication that oil from the oil circulatory ... Mixing non-compatible types of antifreeze can cause sludge in your coolant system. Recommend draining and flushing several times until system is ...