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2018 CTS-V
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245 Posts
Discussion Starter · #1 ·
New to this V but not new to GM small blocks. I see from looking at the PCV hoses and a GM parts blow apart there is a stock "catch can" if you will. How does this work and where does the oil that's caught go? Should I still install a catch can? Every GM engine I've ever ran caught a ton of water and oil in the catch can.
 

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2017 Cadillac CTS-V
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670 Posts
I run a mighty mouse on a stock motor, and my catch can catches almost nothing whatsoever.
 
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