[Niko B]

Mine was doing the same and I changed spark plugs after which it’s super smooth.

My plugs old vs new @ 27000kms

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[Ergo117]

Changed my spark plugs out to NGK Rutheniums, gapped to OEM 0.7mm gap. I prefer not having to swap out the platinum plugs on a regular basis...not to mention the Rutheniums will maintain their gap significantly longer than the OEM plugs.

 

[Niko B]

Which model did you use? What interval did you use for plugs replacement?


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[NAM VET]

About to put new NKG's into my '18 QV at 33 K miles. The plug on the left above looks to me to have been overheated, it looks fried. NV

 

[Ergo117]

Which model did you use? What interval did you use for plugs replacement?


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NGK LKAR8BHX replaced at 20k miles. Mine looked similar to yours.

 

[Niko B]

NGK LKAR8BHX replaced at 20k miles. Mine looked similar to yours.

Also experienced smooth idle after you changed them?


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[Ergo117]

Also experienced smooth idle after you changed them?


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Yes. I also datalogged my car since I wanted to make sure the gap was correct and there wasn't any spark blow out. 0.7mm seems like such a wide gap for a car that runs 20psi...but it was happy all the way to redline.