What is the AOS on a Porsche Boxster?
Understanding the PCV and AOS Systems on Porsche Boxster, Cayman, and 911 Models. The AOS, or air oil separator, is a part of the PCV system on a modern Porsche sports car engine found in Boxster, Cayman, and 911 models.
What does Porsche AOS do?
Function of Air-Oil Separator The air-oil separator is an emissions device at the top right rear corner of your Porsche’s engine. It collects any leftover oil gases and vapors within the crankcase and directs them back to the intake manifold.
What does an air oil separator do?
What does an Air/Oil Separator do? Just as an air cleaner separates the dirt from the air going in to your engine, an AOS separates the oil from the air going into your engine.
How much does it cost to install an air oil separator?
The average price of installing an Air Oil Separator is around $300. This price does not include the cost of parts. However, this is just an average and depends on the mechanic and the location within the country. Some may charge $650, while others only charge $150.
What happens when an air oil separator fails?
When the air-oil separator fails, the results are not catastrophic, but if left untreated for a while, it can result in damage to the engine. If the air-oil separator is not working properly, it cannot separate the oil from the “air” that it is sucking back to be combusted, and oil is pulled into the intake manifold.
How do you know if your air oil separator is bad?
Symptoms of a Bad or Failing Vent Oil Separator
- Smoke coming from the exhaust pipe.
- Check Engine Light is illuminated.
- Excessive oil consumption.
- Sludge under your oil cap.
Does an AOS add horsepower?
If you have a direct injection engine, you should have an AOS. When you go bigger on horsepower, you should have a quality AOS. Even if your vehicle is otherwise stock, and AOS can greatly improve performance and economy over time.
Does AOS need a tune?
The advantage of the Street AOS is that because it retains the same connections and intent as the factory plumbing, you can install the Street AOS without needing to tune the car for it.
How much does an oil separator cost?
Purchasing costs of an oil water separator can range from $2,500 to over $1 million depending on the specifications. Operating costs and amount of maintenance intervention also differ widely.
What is the AOS in a Porsche engine?
The AOS, or air oil separator, is a part of the PCV system on a modern Porsche sports car engine found in Boxster, Cayman, and 911 models.
When should I replace my oil separator?
Some symptoms of a failing vent oil separator include when these vapors clog the vent oil separator over time and reduce its efficiency, smoke emits from your tailpipe, the check engine light illuminates, or sludge appears on the underside of your oil cap.