Oil in Coolant Reservoir A Critical Guide to Diagnosis and Prevention

If you have oil mixed with coolant in the reservoir, you will notice a thick, milky or gravy-like substance that is a tell-tale sign that you have this issue. E60 Discussion - Oil in coolant reservoir - So after taking my BMW to a local INDY he replaced the oil cooler and oil filter housing did 3 ... If you have OIL in your cooling system they had better be replacing the oil cooler. It is not uncommon for us to replace both the oil cooler and ... A blown head gasket allowing oil into the coolant would also allow coolant into the oil, causing a frothy or milky look. Subaru oil in coolant, no coolant in oil, but how and why. Happy ... WHY COOLANT IS BOILING IN THE COOLANT TANK RESERVOIR ON A CAR. Auto ... Worst case is blown head gasket. There's a kit which attaches to the cooling system. It contains a dye that reacts with hydrocarbons. If there's oil in the coolant reservoir it could be a head gasket. If you open the radiator cap with the engine cold is there oil present under it? The tech said he thinks it's the DSG transmission cooler since the oil in the coolant is very dark, vs the engine oil which is as clean as a whistle. 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. Clean the coolant tank out with brake clean or engine degreaser, then follow up with dish detergent (that will remove all the oil residue). Let ...