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Old 06-23-2016, 09:24 AM   #1
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996 AOS in 986 Boxster

My understaning is that difference between 911/996 AOS and the one on Boxster is a coolant line. I wonder if anyone tried to use it on purpose on Boxster. I think extra cool is great for AOS operation. Why they dropped it on Boxster?

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Old 06-23-2016, 09:47 AM   #2
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Typically a coolant line is used to heat the (PCV). It is done to prevent icing up in negative ambient temps. It is not necessary except in Alaska or Fargo, ND.
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Old 06-23-2016, 10:59 AM   #3
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The use of coolant lines is to prevent icing of the AOS at low temps, which can be a problem with the 996, but not with the Boxster, which is why they did not use it.

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