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Old 05-21-2019, 06:53 PM   #11
hotlap


 
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Drives: 20 1LE 2SS M6 Rally Green
Join Date: Mar 2014
Location: Franklin WI
Posts: 6,632
I’d guess GM’s problem with catch cans is that the owner is responsible to empty them. If the can is too full, the crankcase ventilation won’t function properly resulting in oil contamination and blown seals.
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