Spark plug NGK or OEM Mazda

PartReview Score

Rank #1 in ranking

1506

597

763

4.0

Acceleration

3.7

Idle

3.5

Starting

4.1

Owners' choice:

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #6 in ranking

4.5

Acceleration

4.3

Idle

4.0

Starting

4.5

No data

Reviews

All

NGK

OEM Mazda

NGK › Spark plug

CheeseMan316 1 Oct 2025, 01:10

Rating 4.0

I ordered NGK plugs gapped to factory spec (.032). I didn't pre-check them, but I late went back and checked them and they were all in spec.

Pros: factory spec

Mileage: 65000 km

NGK › Spark plug

BigUpstairs6349 21 Sep 2025, 23:15

Starting:
Idle:
Acceleration:

Rating 5.0

replace the plugs with NGK only... I did this on 21 cars and every time the car started working as a new one. All cars were Audi of course.

Pros: car worked like new

Vehicle: Audi

NGK › Spark plug

OrganicReception2865 14 Sep 2025, 08:27

Idle:
Acceleration:

Rating 5.0

I just changed all four NGK platinum spark plugs on my soul. My car’s driving good. No engine skips.

Pros: driving good, no engine skips

Vehicle: Kia Soul

NGK › Spark plug

Grand_Thing3912 30 Aug 2025, 16:56

Starting:
Idle:
Acceleration:

Rating 5.0

I bought 4 new NGK plugs (part #92411). Installed them and it ran perfect.

Pros: ran perfect

Part number: 92411

NGK › Spark plug

JayStri 15 Aug 2025, 00:17

Starting:
Idle:
Acceleration:

Rating 5.0

Only use NGK.

NGK › Spark plug

Ixyz3 11 Aug 2025, 07:45

Rating 4.0

I would go for NGK. Using this brand on all my cars so far, I would not risk a switch. Although a compatible Denso will be equal for the short/mid/term.

Pros: good brand, reliable choice

Cons: risk of switching brands

NGK › Spark plug

simola- 10 Aug 2025, 13:11

Rating 5.0

At 101k miles I recommend that maintenance package if it hasn\u2019t been done before and you\u2019re not mechanically include. Spark plugs were $80 for NGK plugs and I have diag tools + experience to inspect my own so cost is $100.

Pros: NGK plugs, diag tools

Mileage: 162544 km

NGK › Spark plug

ittimjones 30 Sep 2025, 17:55

Starting:
Idle:
Acceleration:

Rating 3.0

I have the ruthenium. Bought pregapped from Mountune. They are fine. They work no noticable change. I've put about 200k miles on them between by ST and RS and changed every 50k miles with no issues (both tuned and stock).

Pros: no issues, long lifespan

Cons: no noticeable change

Mileage: 50000 km