2003 GMC YUKON SPARK PLUG CHANGES

  • Tiny
  • rlsharpe
  • 2003 GMC Yukon

Engine Performance problem
2003 GMC Yukon V8 Two Wheel Drive Automatic 110000 miles

Do these high performance plugs, guaranteed for 100000 miles, need to be changed then or how much longer can one go?

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Tuesday, July 22nd, 2008 AT 10:31 PM

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  • Tiny
  • blackop555
  • Expert
  • 10,563 posts

They can easily go over that, really depends on how your driving, or if your maintained the vehicle

should go over 100k but I would change them as when they get there, they are not as efficent as they used to be, and you will want the most efficent engine possible.

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Tuesday, July 22nd, 2008 AT 11:05 PM

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