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Old 08-26-2019, 08:46 AM   #2
Juiced1
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Drives: 2012 2SS CAMARO 45th
Join Date: Apr 2011
Location: St. Charles, IL
Posts: 18,648
It's a good idea on boosted cars. Without a check valve you can send boost into your crank case (not good). It'll usually push the dip stick out
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