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      11-03-2012, 09:57 PM   #12
328i M-Sport
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Drives: 2011 328i M-Sport Sedan
Join Date: Sep 2011
Location: NYC

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Quote:
Originally Posted by 335BBS View Post
Back in about 1982 my New Monte Carlo used to ping on occasion so I would fill up with "premium" and the pinging would stop. Like the Cruze, All modern day engines have systems to prevent an engine from ping
Yes, the way they do it is by reading the knock sensor and reducing timing. For safety reasons, the "recovery time" for the timing to get back to normal is set to take a while. While it is happening, it will feel like a small misfire if there are enough carbon deposits.

So you would feel the difference in a newer car with carbon deposits after filling it with premium.
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