I should check my catch cans. Glad you posted this. I need something to do since I can’t drive it.I will add for those running E85 and a PCV system, you should be changing your oil every year before storage.
Water is a byproduct of running E85 and all that moisture is mixing in your oil.
I was running breathers but couldn’t deal with the mess. I am now running a vented catch can, I get 1/2” of water in a water bottle just from letting the car idle up to temp. Imagine this much water going into your oil every time you drive the car. Yes some of it will get burned off in the engine but it still will add up. Would not be a good idea to store the car this way for months at a time.