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There is foam in my oil cap. I'm not losing coolant and there is no oil in the radiator. I changed the oil and it showed up again.. I'm gonna change it again in a week and see if it's still there. Does anyone know why this is happening?? I don't want my motor to blow
2 Replies
Condensation is fairly common on the oil filter cap in colder weather on a lot of engines. It's most likely just water condensed from the normal blow-by gasses. If your really concerned monitor the coolant level for loss, when you change it in a week have an oil analysis sample bottle on hand to send it to a lab so they can test for coolant.