I just found this in my engine on the cover lid. I took it for 10 min drive to pick up some oil. Any thoughts ?
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How's ur dipstick look? Any overheating at all?

 

Normal. Check coolant, if ok.. Just drive it. Short winter trips cause this.

 

thanks for the quick reply guys. Coolant look good. It was low but seems to have come back up to wear I marked and I'm very slow leak.

No overheating that I'm aware of and no cels, as well I don't have a coolant temp gauge anymore so I can't see if it's going over.
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The cold weather has a bunch of moisture that is absorbed into the crankcase when the engine is shut down. If the car is not driven on longer trips (say 20-30 minutes), then the water will not be boiled off from the oil as it heats up. If the dipstick seems normal, then it is just the moisture from short trips. A nice drive will clean up most of this residue, but I would wipe off what you can get to.

Take a flashlight and look at the top of the transmission under the air inlet tube. If there is a blue/green stain there, then your thermostat may have a leak. You can also take off the expansion tank (one bolt on the radiator support) to see if there is a leak on the tank underneath. You can just twist the tank around, you don't need to drain it to check for a leak. I had leaks in both of these locations.

Have fun,
Mike

 

A coolant leak out of the thermostat housing (or any of the other usual places) would not cause milkshake condensation on the oil fill cap. Many expensive things can, but lets not jump to conclusions with so little data. For starters, clean the cap and take the car out for a prolonged drive. Anything long enough to get engine to full operating temp.

Then check the oil cap again. If it looks clean - have a beer and relax.
If you see more water+oil condensation, THEN let the forum know and stock-up on stronger drinks.

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