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I was told that Bosch burns hotter than NGK spark plugs--and that NGK were performance spark plugs. What is the difference between a spark plug that burns hot and one that burns cooler... fuel efficiency?
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"The presence of true self-confidence is the absense of worry, anxiety, and fear in a man's mind." -
next time , please use the search button at the top of every page
this is what i came up with :
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to aid in your research further please check this site out
they should answer all of your questions:
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