Owner reviews for spark plug

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NGK › Spark plug

stanleywilson333 7 Nov 2025, 21:47

Rating 4.5

Get an icon click type torque wrench from harbor freight when they have a sale. And a deep socket set for spark plugs plus dont buy your plugs on Amazon. Go to rockauto. And buy them there buy ngks also rediitt has a rockauto sub and usually people give out 5%off coupons. Also Do not use cheap aftermarket plugs on your car also you'll need a regular ratcheting wrench and extension. Never use torque wrench to loosen plugs it csn destroy the calibration

Pros: buy NGK plugs from Rockauto

Cons: do not use cheap aftermarket plugs

Denso › Spark plug

choob13 7 Nov 2025, 16:05

Rating 4.0

Idle:
Acceleration:

There is a noticeable improvement in performance when I cross over into the next country and refuel. This is what my denso iridium plugs look like after 20k km. I had a misfire. New plugs today, and the misfire is gone

Pros: noticeable performance improvement

Cons: misfire, poor fuel

Mileage: 20000 km

BRISK › Spark plug

Available_Cookie732 7 Nov 2025, 15:05

Rating 4.0

Acceleration:

You get a better performance if you install a booster plug, DNA air filter and Brisk spark plugs. Great torque from 2000 rpm as a result.

Pros: great torque from 2000rpm

Vehicle: BMW

NGK › Spark plug

TheRefurbisher_ 7 Nov 2025, 13:53

Rating 4.0

NGK Laser Iridiums will last longer, but those aren't bad per se.

Pros: will last longer

Vehicle: Honda Fit

NGK › Spark plug

AdministrationOk210 7 Nov 2025, 00:48

Rating 5.0

Acceleration:

I had to put a new spark plug in mine after only a few hours of use. It had some China branded in it and I switched to NGK. Also propane creates a hard harder to jump spark gap so you generally have to narrow the gap a tiny bit from typical specs when you’re going to run propane. Since I only run propane I went down a little on the gap and it runs flawlessly. I optimize the gap width by seeing which widths responded best to a sudden surge load without hesitating.

Pros: runs flawlessly, optimized gap width

Cons: harder to jump spark gap

NGK › Spark plug

YODA0786 6 Nov 2025, 19:21

Rating 4.5

NGK Lazer Iridium Plugs is what I got to replace them in my car. I believe those are what Mazda OEM plugs are, but it’s just cheaper to buy the NGKs from a part store.

Pros: cheaper than OEM, OEM quality

Vehicle: Mazda 3

GENERAL MOTORS › Spark plug

teleskier97 5 Nov 2025, 23:45

Rating 4.5

Yup. They do still exist. If I recall they have the 3800, arguably the best V6 if not the best motor the general ever produced. I hear some of the spark plugs are a total beotch to change. Comfortable car and among the last true “personal luxury” cars. They “were” fairly common 25 years ago.

Pros: best V6 motor, comfortable car

Cons: spark plugs hard to change