Kotta390
Senior Member
I understand what the principle is behind the PCV system. The reason I bring up this topic is because apparently I don't understand enough about it. IE; I have a catch can on my truck and I do 90% highway driving literally. I also do the very occasional "spirited" driving as well. My concern is I thought the PCV system stays mostly closed during light throttle and thus there shouldn't be much oil in the catch can over the course of "X" miles driven compared to someone who drives with a heavier foot or more in town driving then I do because of the heavier load on the engine. The issue I am having is compared to others, from what I read, is that I am accumulating MUCH more oil in the catch can then I would presume be there. In the course of about 1000miles give or take 100, I notice a pattern that my catch can is about half full. From what I can tell I shouldn't have a half full can of oil until roughly 1500-2000 miles of driving. Whether this is true or not I still feel like I am accumulating more oil than I should.
Can someone explain how the PCV system works under light and heavy throttle and also am I to worry about this situation or is this 100% normal?
Can someone explain how the PCV system works under light and heavy throttle and also am I to worry about this situation or is this 100% normal?