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Old 07-06-2009, 08:05 AM
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bobcowan bobcowan is offline
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Quote:
Originally Posted by priobe View Post
Tom,
Great video.

But I have heard with all the additives and 10% ethanol that these reading are not obtainable?

Have you heard any different?
That's pretty much true. With modern fuels, alcohol, additives, etc, reading the plugs is not as accurate as it used to be. Signs if significant detonation, or significantly rich/lean are there. But for fine tuning it just doesn't work. Unless you're using leaded race fuel.
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