Is this common with all 210's???

[JetTech]

Take a look at my oil cap.... I've read where the 210's will accumulate moisture under the oil cap because that area never heats up enough to burn off the moisture, BUT....is this normal??? I wiped off a bunch of the goo from the bottom of the oil cap before I took these 3 pics. Yes my wife short trips this vehicle, she only works 3.2 miles from where we live, but is this what I should expect to be normal???

I guess if this is normal is there any way to combat this build-up of moisture aside from changing the oil every week? I'm running Shell Rotella T synthetic 5W-40 in the engine because I was planning on 3K mile oil changes, I just changed the oil 1400 miles ago...

Thanks all,

Dale