SPARK PLUG CHANGES

2003 GMC Yukon

Tiny

rlsharpe

July, 22, 2008 AT 10:31 PM

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?

FOUND 4125 RELATED QUESTIONS

1 Answer

Tiny

blackop555

July, 22, 2008 AT 11:05 PM

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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