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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,289
Originally Posted by mppickett View Post
No. You do not usually drain the turbo drain tank. Actually, if you hold the throttle around 2000 rpm for 15-20 seconds before you turn off the engine, the turbo drain pump (attached to the back of the left bank camshaft) should mostly drain the turbo drain tank for you and pump it into the large oil tank beside the rear passenger wheel mentioned by Rarlyl8. This usually eliminates the characteristic puff of blue smoke on start up (if you hold your mouth just right).
When I worked at a german car street shop it was normal procedure to drain the factory turbo sump tank along with the main oil tank and engine case.

We would also disconnect one end of the large S hose at the bottom of the oil tank and let it drain out and also the oil line coming back to the tank from the external thermostat.
It takes a little extra time to do that but it gets more dirty used oil out and thats a good thing.
Porsche oil changes took longer so the labor charge was higher than most other cars anyway.
Old 09-13-2010, 05:52 PM
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