Quote:
Originally Posted by priobe
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?
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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.