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ngk spark plugs ruthanium vs iridium

  1. 2009-2011 Pilot
    Noticed people keep asking about the NGK Ruthenium. If they should use these. I got Honda Pilot 2011 and 2012. Lately i noticed the performance of the 2011 (miles 95K) not like it used to be, Car was sluggish a little. Checking the milage I noticed It is soon time to replace the spark plugs. I...