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Old 07-09-2012, 05:51 PM   #407
HPF Chris
Past Site Sponsor
Join Date: Feb 2006
Location: Portland, OR
Posts: 3,684
My Ride: 2002 M3, 2006 530i
Originally Posted by Tchleung View Post
That is certainly not fine. Perfect way to wash the cylinders and dilute the oil.

There is no need for a car to idle that rich.
10:1 to 11:1 on full boost is perfect for our kits. 14:1 is ideal "at idle", but we will usually see between 13:1 and 14:1 at idle. 12:1 is a little on the rich side at idle but won't hurt your motor any.

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