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The water and oil combine and emulsify (a bit like mayonnaise) which results in the deposits around the filler cap. This indicates that you have water (coolant) leaking into the oil due to a head gasket problem. I have a creamy deposit in the oil filler cap/neck? What does this mean? You may also detect the smell of coolant/antifreeze and, in extreme cases, you will notice damp patches in the footwells. The moisture then condenses on the windshield cause the misting. If there is a coolant leak in the core, then this contaminates the air entering the cabin.
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The heater core transfers heat from the coolant into warm air to heat up the cabin. One cause of misting windshields is when there is a leak in the heater core. You may also notice reduced engine performance, starting problems and fouled spark plugs. The water boils in the cylinder and is expelled with the exhaust gases. The steam is the result of water entering the cylinder(s) due to a head gasket failure. What you are seeing is not smoke but steam condensing as it exits the exhaust and hits cold air (just like when a kettle boils). I have white smoke coming from the exhaust. K‑Seal can only fix leaks in ‘solid’ parts of the cooling system including the head, head gasket, block, core plug, radiator and heater core. K‑Seal will only fix coolant leaks and cannot stop oil leaks. I have oil leaking into the water/coolant. Therefore, there is a reduced chance of K‑Seal making a successful repair. Where coolant is leaking into the oil it is less likely that K‑Seal will be exposed to an atmosphere. This can be externally or internally (across the head to the cylinders). Will K‑Seal fix this?įor K‑Seal to work effectively it needs to be exposed to an atmosphere. Symptoms I have coolant leaking into the oil.