Crankcase breathers play a big role in reducing diesel engine emissions by recirculating blow-by gases back into the engine.

Vehicle Update N25-250520 for 2024 and 2025 model years of the Chevy Silverado and GMC Sierra full-size GM trucks enables the ...

Think of an oil catch can as a tiny quarantine ward spliced into your engine's positive crankcase ventilation (PCV) hose.