hey i hope your right, i have a similar oil problem and at the moment have the little hose cut and plugged as an experiment! (like you i figure the eraly turbo's didnt have them...so they cant be THAT vital.
My worry about the pcv was the valve failing, the little bit of rubber shooting (under boost!) through the pipes and into the inlet of the turbo - the turbo thats working hard at god alone knows how many rpm....but hey if it works i might well give it a go!
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Old Volvo's never die..they just get more attention!
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