There is a meteor 350 in my riding group with an iridium plug which i will say he Acquired Unexpectedly, and damn the results are just awesome.
Mine had NGK, so that is what I put back in.
I have been using the ngk ruthenium sparkplugs and they work just fine, cheaper than the iridium's.
So I’m running an 03’ with the 2.4 and I put in NGK Laser Iridium but Denso is perfectly fine. I’m surprised how much your plugs cost if your paying list price. The cost price is how much I paid for mine at the parts store. Both plugs are fine to use.
I always change about 10%-20% earlier than recommended, because I want to keep my coils healthy. A set of NGK iridium is $40. I went with the NGK Ruthenium (92274) because they were on sale (same price as regular iridium).
My 19 was the first year of a turbo for the GTR. I think they were being conservative with the 40k. I’ve been changing them at 60 and they look great. Just make sure you use the NGK (which is the Mazda brand as well).
Do follow the advice from the other replies and buy some Denso or NGK Iridium plugs for your Acura.
You can find the OE plug on the NGK site. Click on the Specifications tab to see the gap and torque value (0.8mm = 0.0315" and 18-21.6 lb. ft ) NGK plug for Arteon I bought the plugs from the dealer. I slightly re-gapped 2 of the 4 to meet spec, but expect that they would have been fine as was. My original plugs only had ~27k miles on them (but installed 7 years earlier) -- the originals came out easily and were in excellent condition.
11500tfc. Propane. Torch plug replaced w NGK BP7ES. Trouble free thus far thru 2 outages of 125+~ hours.
I have the 11500TFC, its been great no problems. Just change the spark plug to NGK.
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