I installed some of these plugs in my 2009 Mazda CX7. According to NGK, they should last 80 - 120K miles. I feel like 80K would be good. Is that what others have found? Thanks, Andy NGK Laser Iridium plugs feature an iridium tipped fine wire center electrode, and platinum tipped ground el…

I don’t know offhand what specific plugs are OEM on my Mustang, but they were still fine after 100,000 miles. Modern plugs with modern ignition systems and fuel injection last a long time.

Most standard plugs in today’s cars last 100,000 miles as per the owner’s manual. Any premium plug on the market should last at least as long. Gone are the days when every two years or so you needed new plugs.

Iridium plugs should last easily 100k miles. NGK is a quality plug manufacturer. I trust their plugs over all other plugs. They are my goto plug.

I have always been given the recommendation of using OEM plugs.

[image] Barkydog: I have always been given the recommendation of using OEM plugs On most Asian vehicles and even Domestic vehicles (GM for one) - NGK are the OEM plugs.

They work as well when new. However they don’t ;as as long. Remember in the past plugs were good only for about 10,000 miles. The emission ;legislation changed all that since cars had to meet the “new” standard for at least 50,000 miles. Platinum plugs came next and with longer maintenance interva…

To be honest plug longevity really hasn’t been much of an issue in the last decade or two… Ever since fuel injection and electronic computer controlled ignition timing, the plugs last just fine…even beyond when you would think they should be toast by the looks of the eroded things plugs turn into a…

My mechanic had no problems getting the old plugs out. He did say the tips were burned off.

[image] Anti-seize on spark plug threads — Ricks Free Auto Repair Advice Don't apply anti-seize on spark plug threads. Most new spark plugs have a metallic plating that acts as a release agent. Tester

NGK Laser Iridium plugs

Maintenance/Repairs

Cavell February 23, 2020, 9:30pm 9

Do the cheap, internet copy plugs work as well as real oem plugs?

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NGK Laser Iridium plugs

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