86 951 Driver

Can this happen when its really cold out? My car is running the best it ever has. Not drinking coolant or oil. The dipstick looked great actually. Oil pretty clean. Lately it has been about 5 degrees F. I didn't know if with it being so cold if this is normal for this to happen.

bonus12

Mine has that too. In my car it's more of a white sludge in the same place (under the oil cap). No coolant leak, only the most minor oil leak. Runs very well. I believe it's normal and I certainly hope it is!

PorscheDoc

Yup, pretty normal condensation in the winter. Go crack the oil fill on your jeep if you want to see some froth!

Hollywood D

I used to have an F150 that would have that little bit of sludge on the oil cap. It wasn't an issue, never had any oil or coolant leaks in that truck.

scam75

Yep, condensation. See it a lot in Scotland!

Stuart