Question:

Which spark plug is hotter ngk 7 or ngk 8?

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Which spark plug is hotter ngk 7 or ngk 8?

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  1. The higher the #  the colder it gets

    The lower the # the hotter it gets

    Think of going "up" to heaven and "down" to burning in h**l


  2. With NGKs, the lower the number the hotter the plug.  Their numbering system is opposite of Champions and Autolites.

  3. 7
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