Has anyone tried the Denso Platinum TT spark plugs as compared to either the NGK or Denso Platinum or Iridium plugs?
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2004 Honda Pilot Question: Spark plugs
Answer #1mahindra November 30, 2009, 16:47Journeyman
The Iridium plugs are superior.
Answer #2patrick mannion from Greg Solow's Engine Room, November 30, 2009, 19:43Master
Iridium plugs are superior and last the longest but the retail cost is often high. Labor to replace the plugs is .8 hours. I have had good luck with Denso platinum plugs but dislike Bosch Platinum its all down to personal preference and how often you are willing to change the spark plugs.
Answer #3backyard tech November 30, 2009, 20:26Master
Why don't you put in what the MANUFACTURE recomends. That is what they designed the car to operate with. The MANUFACTURE recommendation for replacement is 105,000 miles or 7 years which ever comes first. That is based on a properly running engine.