Uncover the Truth What Causes Oil in Coolant Reservoir and How to Fix It

Using some Preston coolant flush solution and running the engine hot 20-30 minutes idling and letting the coolant cool to 150°F, i was able to ... The reason is that oil floats on the coolant, so it would tend to wind up at the top of the radiator, and whatever's on top in the radiator, ... The coolant reservoir was leaking a brown liquid. I guess this is oil and i have heard that means its most likely a blown head gasket. 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 / ... 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. GL 450 2007. It's still drivable. I just got an alert yesterday that coolant is low. Is this an expensive fix ? The oil filter housing has a one peice gasket for coolant and oil, if this gasket is bad enough it can cause the mixing of oil and 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 ... The mixture of coolant and oil reduces the efficiency of both fluids. This results in more friction and heat causing severe overheating and wear and tear to ... Share your videos with friends, family, and the world.