Spark plug NGK or AC DELCO

I just replaced my spark plugs on my 2012 1.4T with the ACDelco 41-121 ones.

I use NGK BKR6EKPA and NGK PMR7A for my 147 2.0TS

In my '16 sport I use NGK Iridium IX. I've run these in every Honda I've owned since the 90s.

Ive used the 92274’s in about 15-20 fb builds and great so far

The easiest way to know if NGK plugs are real or fake is test them for resistance.

Yesterday I went to get my stock spark plug changed with NGK's iridium spark plug along with the cable and resistor cap. It's a 150cc Yamaha FZ 2024, runs smoother now, throttle response got noticeably faster

NGK Iridium. Easy to read, work great. That's my personal favorite. But anything will work.

I recommend nothing with platinum. I've had problems with those in my 1980 gbody with a 305. I just keep it simple with old ac/delcos now. Keep it simple for less problems.

I tried it once after reading about that. Used ngk plugs. One of them seized and snapped on me trying to remove it. Only plug I’ve ever had seize.

When I got my S60 (2006, T5) the previous owner had some copper AC Delco plugs made to fit an 850 non turbo in it and I wondered why there was very slow engine response.