I stick with ngk iridium
Pros: ngk iridium
Reviews of NGK spark plug
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Yep. Ordered some NGK iridium plugs on Amazon, 2600 miles later the car was misfiring. The gap was toast. Counterfeit for sure.
Cons: misfiring, gap toast
Mileage: 2600 km
NGK Ruthenium 95125.. I ran a set for 25k miles w/o issue on Stg 2 E85 tune.. their gap barely if at all budged.. probably could've kept using them.. ymmv.
Pros: no issues, gap barely budged
Mileage: 25000 km
Part number: 95125
i just switched over to some ngk 91006 last week which smoothed out the idle. haven’t put enough mileage on them to give a solid review but it’s what many recommend and the car felt great at the track this weekend so i’d say they are definitely a solid option.
Pros: smoothed out the idle
Vehicle:
Volkswagen
Part number: 91006
After further review i returned the autolite plugs and got NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix). ????
Part number: 93501
I also paid roughly $50 for a set of 4 iridium NGK spark plugs for my Audi a few years ago....even with an extra cylinder or two it shouldn't cost even half as much as they are estimating here.
Pros: inexpensive parts
Cons: high estimate
Vehicle:
Audi
On Rock Auto Denso...Denso double platinum spark plugs for $4.32 each, but I would opt for the NGK Rutheniums for $8.32 each because they last longer and provide better combustion in these older engines
Pros: last longer, better combustion
I went with the NGK rutheniums as they're also rated for 100k and were slightly cheaper on Rock Auto than the iridiums. Supposedly they maintain fuel efficiency longer over their life than iridiums
Pros: maintain fuel efficiency longer
Cons: no personal experience
Vehicle:
Honda Fit
I’ve kept to stock plugs with stage 1. I tried the recommended “colder” plugs and they failed in less than 10k miles.
Cons: failed in less than 10k
Mileage: 10000 km
I just changed out my sparks and found out the previous owners put these garbage plugs in it lol replaced with quality Iridium NGKs
Pros: replaced with quality
Cons: garbage plugs
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