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It's winter here in Michigan, and my 2016 Cruze Limited LS with the 1.8l (24,400 miles) has condensation in the oil cap (see the attached picture). My trips are generally long (40-minute commute), so the engine gets fully warmed up on almost every drive. The oil on the dipstick looks clean with no signs of coolant. I have noticed that I'm burning a little oil (about .5 quart in 2000 miles), but maybe that's just due to cold weather.

Has anyone else experienced this? The dealership said its normal; however, I had similar issues on my old Chevy Malibu with the 2.2L Ecotec motor. It turned out to be the death of the motor (coolant loss into the oil).
 

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If it helps any - water vapor is a natural byproduct of combustion. Due to normal blow-by, it's going to end up in the crankcase. PCV should keep it from building up too much, but it shouldn't be surprising but what it condenses on cold parts - like an oil cap that's sticking out in the cold airflow.
 

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Is this white oil cap condensation/residue more prevalent in colder climates?

I’ve never experienced this in the desert southwest...just curious.
 
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