actually PCV stands for Positive Crank Ventilation, given it does have to do with polution, it reserculates heavy hydrocarbons (which results when oil heats up and part evaporates) and the system is designed to reburn them in the combastion chamber. while PCV system is good idea(it actually can do something with oil pressure, but im really doubtfull) but the problem, engine suckes up a bit of oil with it, and also oil fumes can lower octane rating of fuel. but im rumbling now
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