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Spare parts reviews ➔ All comparisons ➔ NGK ➔ OEM Mazda Page 29

Spark plug NGK or OEM Mazda

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NGK
OEM Mazda
NGK › Spark plug
goatpanda
  • Idle:
Rating 4.0

I decided to give the NGK Rutheniums a try earlier this year after reading about them on this thread I've been happy with them so far, the engine ran noticeably smoother than with the old plugs (but that could have also been simply due to new plugs).

Pros: engine ran smoother
Vehicle: Volkswagen
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NGK › Spark plug
ihaveanironicname
Rating 5.0

I have the OEM RS7 plugs in my car for 40,000km ever since going to stage two with zero issues and will buy them again.

Pros: zero issues, will buy again
Mileage: 40000 km
Part number: 91006
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NGK › Spark plug
morbidbastad
Rating 4.0

Stick with NGK for plugs, its the OE manufacturer, Bosch or Denso are good second choices. Never touch autolight or champion

Pros: NGK is OE manufacturer
Cons: avoid autolight, champion
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NGK › Spark plug
Slightly_Left
  • Acceleration:
Rating 1.0

On my stage 2 mk7 I swapped around and tried a few like ngk and the ngk failed causing misfires like crazy on acceleration. Back to OEM and never had another issue for 45k miles.

Pros: OEM plugs reliable
Cons: NGK caused misfires
Mileage: 72420 km
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