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re: "...Also this NA engine is adjusted close to knock to allow for best fuel economy!..."
How did you do this? How is this done?
I was under the impression that it's all (ignition timing, etc.) under control by the microprocessor -- you can't rotate the distributor to change timing or anything like that which we used to do with cars "in the old days".
Forgive me if I'm wrong about these assumptions -- I really familiar with only 240s -- but my daughter just picked up her new '07 S60 2.5T this afternoon, and I'm trying to learn as much as I can about it -- even though I'm 3,000 miles away from her.
Thanks.
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