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help _ recent spark plug change.


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The factory plugs are good for 90k. Why would you change them at 35k? Pretty much a waste of more than half their life.

 

GD

 

just following the manufacturer's maintenance schedule. besides that when I pulled out they look pretty nasty.

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The factory plugs are good for 90k. Why would you change them at 35k? Pretty much a waste of more than half their life.

 

GD

Factory recommended maintenance states - 30,000 miles.

 

When I changed mine at 30000, the gap on the old ones was quite big.  I have read somewhere that the coating on the plugs at this mileage has gone.

 

OP.  Do you hear the noise when driving or do you hear it only when idling?  I was paranoid when I changed mine and kept listening to the sound as well.  I also thought I heard something weird.  I have 35,000 on mine now and do not hear anything strange anymore.

 

Sam

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