Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...
Rigorous SAE/TMC Type II fuel economy testing by Auburn University showed a 3.5% improvement in fuel economy for a Class 8 tractor fitted with a new aftermarket closed crankcase ventilation (CCV) ...
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