2360 votes
Put in new plugs which are NGK 2309 at stock gap which was recommended by my tuner. DID NOT CHANGE OR FIX MY PROBLEM.
Spark plugs do actually vary for some reason, I always use whats oem to the car. In my case thats the ngk iridium plugs (same goes for cables).
Those spark plugs don't look like the highest quality parts. Get some from NGK or Bosch. Better made parts that are more suited to modern engines
The only things it’s done to me is die (dead battery) and a misfire that cause it to go into limp mode at 118k miles (I went cheap on spark plugs instead of doing NGK’s)
When that started I replaced the spark plugs and coil packs. This was done at 82k miles. There were very small amounts of oil in cylinders 1, 2, and 4. Problems still persisted after replacement of plugs and coils.
NGK or bust.
Most manufacturers don't make their own spark plugs anyway. They are usually just rebranded Denso/NGK/Bosch. I would have no concern fitting NGK spark plugs provided the part number is correct.
Use NGK brand and replace it.
I own an Audi Q5 that takes the iridium plugs. I put the standard NGKs instead and they wore out within 10,000 miles.
I got 2 cheap sets of these online for a Honda idsi engine (8 iridium plugs required) they turned out to be fake and were burned out in 6 weeks causing it to misfire badly.
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