Spark plug NGK or Denso

PartReview Score

Rank #1 in ranking

1506

597

763

4.0

Acceleration

3.7

Idle

3.5

Starting

4.1

Owners' choice:

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Car

PartReview Score

Rank #2 in ranking

324

137

184

3.9

Acceleration

3.7

Idle

3.8

Starting

3.8

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Reviews

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NGK

Denso

NGK › Spark plug

freckled888 31 Jan 2024, 08:26

Acceleration:

Rating 5.0

Just installed NGK 92274 in a 2021 Mazda 3. They are 'Ruthenium' instead of iridium, seems to be their newest plug available. Just don't touch the gap, it was perfect at .044. Runs great.

Pros: runs great

Vehicle: Mazda 3

Part number: 92274

NGK › Spark plug

Character_Dance_5054 16 Jan 2024, 01:07

Starting:

Rating 5.0

Have used NGK on every vehicle I've ever owned. They've often lasted the life of the vehicle.

Pros: lasted the life

NGK › Spark plug

Dieseldog12 13 Jan 2024, 12:16

Rating 5.0

ive put about 15k on a stock gapped set, no issues APR IS20 87 tuned,

Pros: no issues

Vehicle: Volkswagen

Mileage: 15000 km

NGK › Spark plug

forda1996 10 Jan 2024, 06:06

Starting:

Rating 4.0

You will be fine if you go with them. Like others have said it's a solid plug and no issues so far with mine.

Pros: solid plug, no issues

NGK › Spark plug

bmxguy08 10 Jan 2024, 01:22

Acceleration:

Rating 4.0

I run them. They are a good plug.

Pros: good plug

NGK › Spark plug

WillingBoard549 9 Jan 2024, 21:19

Acceleration:

Rating 4.5

They are great. Also around 12k miles on mine - no issues.

Pros: they are great, no issues

Mileage: 12000 km

NGK › Spark plug

rabbit__eater 9 Jan 2024, 17:29

Acceleration:

Rating 4.0

Yeah I've had these on my 2010 for about 12k miles now. No issues, have been performing just fine.

Pros: performing just fine

Cons: no issues

Vehicle: Nissan

Mileage: 12000 km

Denso › Spark plug

attnSPAN 31 Dec 2023, 02:32

Starting:
Idle:
Acceleration:

Rating 5.0

Plugs(Denso IK22) coils(DENSO or Hitachi) and a valve adjustment, all due at 100k. They really do make them run better and much more reliably.

Pros: run better, more reliably

Mileage: 100000 km

NGK › Spark plug

j2010701 24 Jan 2024, 22:01

Rating 3.0

Replaced spark plugs on a 2009 Corolla 1.8L. I used NGK plugs, should I swap out to Denso?

Vehicle: Toyota Corolla

Denso › Spark plug

Qlanger 14 Sep 2019, 23:36

Starting:
Idle:
Acceleration:

Rating 1.0

Skip them, they are junk and a waste of money.

Get a good single platinum plug like the Denso 4511.

Pros: good platinum plug

Cons: junk, waste of money

Part number: 4511

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