Probably just condensation. You said you hadn't driven the car in a month or so, and that you just recently drove it...did you let it get to full operating temp? and keep it there? We have a problem at school(STEP) where the cars only run for about 10-20 min a day, just idling. You look at all of their oil caps and they are all white and nasty. These cars never get driven either, we have a 00 M5 with 2000 miles on it, and an 03 M3 with 200 miles on it:-).
Clean off your oil cap as mentioned, then take the car for a moderate highway drive. Let it get nice and warm, and let it stay warm for a while. Then when you park the car let it idle for a bit, turn the car off, and pull the oil cap and let the steam out. should be good to go.
kyle
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milky white film can mean coolant is mixing with oil. Change your oil and make sure everything is ok, check your coolant also.Leave a comment:
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Carry a can of carb cleaner, clean that shit off the cap. Put some miles on it, see if it comes back. Then you will know if you have a worry or not.
LukeLeave a comment:
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is it cold there? Are you driving short distances? i know that my old golf used to get that real bad when i would drive short distances and the car wouldn't burn off the condensation that built up in the cold. Now i am no expert but in my experience it was just condensation.Leave a comment:
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milky white film on Oil Cap
Now if your oil and antifreeze mix you get a milky mixture in your oil. Which i probably a cracked head or bad head gasket. But my 325ic has been sitting for about a month or so and I just took if for a couple mile run. Seems to be running ok, I popped the hood anyway, and checked the oil via the dip stick, seemed ok. I popped the oil cap an inside it looks ok, however on the oil cap there was a milky white film. I looked in the coolant res and it looked pretty clear/green no oil. Could this just me moisture from sitting or do I have bigger problems? Thanks for any help/advise anyone can give.
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