Unmasking Oil Contamination in Water Coolants The Ultimate Detection Guide

If you have oil in the coolant jug then you have a blown head gasket. Depending on if it's overheating your car is going to die. This happens because the o ring seals on the water pump have gone bad and turned hard as a rock and because of the seals can no longer separate ... I don't know about your particular model but a failed thermostat housing is commonly the cause on other vehicles as oil and water come into ... Hose / tap water is fine. Distilled is recommended only because it is convenient and reliable, more convenient than an analysis of tap water. (flushed cooling system with 16L of coolant after the repair, ran tons of water through the reservoir) Replaced the radiator, thinking that ... For coolant to be getting into the oil I'd say you've got a bad oil seal #8 on the oil pump/water pump shaft. 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 ... 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 ... 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 ... Oil floats on top of water (not sure about coolant) and if the suction hose is at the bottom of the overflow tank (with coolant in it), the ...