Originally posted by BBorges:
I mean, I didn't think about this, Ford didn't think about this, CEG didn't think about this...




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There were many other cases but the last one is significant.
Running lean does not cause much pinging in a stock engine unless there is annother problem. Reduced EGR, Octane creep, and timing problems top the list.

"Those who cannot remember the past are condemned to repeat it" -George Santayana