I meant if you were on the original valve and hoses. The insulation does just slow the process I will give it that.

Going back to pcv as a maintenance item, at our X's being between 8-14 years old, if you have replaced once and see the cold temps I would be sure it was the cold climate version.

I see nothing wrong with this maintenance method on a system that has been replaced recently or in the past few years, but based on what I've read and experienced personally, if you are on the original system it's somewhat borrowed time.

This is just my opinion obviously.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards