#BestPcvValves

The Best PCV Valves For Top Emissions Control Performance

Regardless of what type of vehicle you drive, if it was built in the last few decades, its engine has some form of emissions control system designed to reduce the harmful environmental impacts of burning fossil fuels like gasoline and diesel. One of the most common components in an engine’s emissions control system is the positive crankcase ventilation valve, or PCV valve. Its job is to allow the air and fuel vapor that gets past your engine’s pistons—known as blow-by—to get back to the intake so that it can be burned instead of escaping into the air as pollution.