Spark plug NGK or OEM Volkswagen

7751 are the OEM plugs and rated for ~105k miles, give or take.

I like my NGKs a lot. Never had any issues with them and they perform well

Honestly I think NGK plugs are better. Either one does the same thing, but I've never heard of a bad NGK plug, even well beyond its normal useful life.

I stick with ngk iridium

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.

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.

After further review i returned the autolite plugs and got NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix). ????

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.

Replaced spark plugs on a 2009 Corolla 1.8L. I used NGK plugs, should I swap out to Denso?

Well, shit. I just put new plugs in two months ago following what EQT recommended then! I didn’t know of these failures with projected tipped plugs. Guess I should have spent a little more and bought non projected at the time, dammit.