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I've been thinking about ways to increase the lifespan of my 3.9 and I'm wondering if adding PCV ventilation and an oil separator/catch can would be beneficial.
 

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The only reason to not use the factory PCV valve (or a Mopar replacement) would be due to excessive blow by.

But yah, if you replace the PCV valve with an aftermarket valve, add a catch can so you can strain out the oil instead of fouling the cat(s) and the intake and plugs.

Better would be to keep the oil and filter changed; use a quality oil and filter; keep the cooling system flushed; keep it tuned up.

RwP
 
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