Curious when the current & common PCV system was introduced? PCV valve etc. Is this system used world-wide? or mostly only for USA-destined vehicles? I don’t recall seeing a post here from poster outside the USA about this topic.

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PCV history?

General Discussion

circuitsmith December 7, 2022, 12:10am 5

Deja vu

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That was called a “road draft tube”. They would leave an oily stain down the middle of road lanes. [image]

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What would happen if you drove without a pcv valve? Short term and long term?

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