2003 GMC Yukon Spark Plug Changes

Tiny
RLSHARPE
  • MEMBER
  • 2003 GMC YUKON
  • V8
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
Do these high performance plugs, guaranteed for 100000 miles, need to be changed then or how much longer can one go?
Tuesday, July 22nd, 2008 AT 10:31 PM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 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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