Oil in Coolant Causes, Symptoms, and Essential Fixes

Coolant can react to oil and make it sludge, which isn't good, and coolant in your lubrication system would be bad. So the next step is to ... The most common sign of oil in cooling system is the presence of a slimy milky-brown layer in the coolant. The oil dipstick looks nice and clear/dark pure oil, no coolant. Could it be related to the radiator, or any other part of the car that would have been damaged ... Then flush your coolant and do an oil change. If you suspect you have an issue with your head gasket, do a compression check. Check your hoses ... You should be able to see the colour of your antifreeze in the reservoir tank when you remove the radiator or coolant reservoir lid. Oil remnants will be seen ... If you have oil in your reservoir you have a blown head gasket my friend. You can see it better in the reservoir then you can in the radiator. The oil cooler is the most likely cause, like most engines, it's combined with the oil filter housing. If your repairer doesn't know this and / ... It's your oil cooler. I promise. Drain and change NOW before you build too much sludge throughout cooling system and heater core. It's going to ... The ONLY place I'm finding oil is IN the antifreeze coolant reservoir. Just to clarify: 1. There is NO power loss at all. The car feels and performs great. This oil is from tranny as it uses the radiator as a form to cool down the tranny oil. The color of the mess was milkshake.