Unlock Peak Performance Ultimate Guide to Oil Removal in Water Coolant

A broken or damaged head gasket is the prime cause of oil getting in the coolant. You can find this head gasket beside the engine block. It ... A cracked block/head or head gasket might let oil into coolant. I'm not telling you it couldn't be the oil cooler, but you said you just ... Since oil pressure is higher then cooler pressure, the slightest leak in the oil cooler will enter the coolant. Since oil floats on top of water ... 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 ... Since oil is lighter than water most of the oil in your cooling system will float to the top of your radiator or coolant overflow tank. If you see an oil slick ... 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 ... I have a 09 Beetle, my mechanic called me with my issue and it was a failed oil cooler. I had oil in the coolant and the car overheated. HG leaks don't really put oil in the coolant on these engines. An oil cooler failure can definitely do it, as can a crack in the oil filter ... Blown head gasket\cracked head if you're not getting a CEL with a miss. Oil and coolant only combine into that nice brown goo under high ... Fill it up in the radiator and run the car for a few days. Then drain the coolant. Fill with just distilled water. Run for another few days.