Deleted member 17846
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I know what it does. Was responding to your last comment of "Otherwise it probably doesn't make much difference."A Positive Crankcase Ventilation valve isn't a catch can. It is intended to pull exhaust gasses out of the crank case. A catch can is intended to remove oil that might be in those gasses.
Since you commented on both PVC and Catch Cans that last statement is not factual.
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