Thread: Spark Plug Related: BR9ES or BR10ES?
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Old 12-14-2013, 11:36 PM   #3
airboatphil   airboatphil is offline
 
Join Date: Dec 2013
Posts: 5
NGK is the only brand that the higher the number, the colder the plug...all the other brands are the higher the number the hotter the plug.



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