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Philip Swanson · 03-31-2008, 07:56 PM

The sound your hearing is the TURBO winding down and it is normal. You will hear this even if you let the engine idle before shutting down. The reason is because most turbo's spin at approx. 60 - 90,000 RPM , this is why oil change intervals are so critical in these cars. The only time you really may want to let the turbo cool down is when it's been driven very hard (as in racing) or comming diectly off a long drive at highway speeds.

03-31-2008, 07:56 PM	#12 (permalink)
Philip Swanson Newbie Join Date: Oct 2007 Location: Audirondacks Posts: 18 Gallery: (0)	The sound your hearing is the TURBO winding down and it is normal. You will hear this even if you let the engine idle before shutting down. The reason is because most turbo's spin at approx. 60 - 90,000 RPM , this is why oil change intervals are so critical in these cars. The only time you really may want to let the turbo cool down is when it's been driven very hard (as in racing) or comming diectly off a long drive at highway speeds. __________________ AUDIRONDACK CRUIZER