Review on Spark plug NGK 97153 IZFR6P7 1 pc. by Wiktor Wasilewski ᠌

After the first month, the car started to start badly in the morning, I did not think that this could be due to bad candles. In the end, after 2 months, one day it did not start, Troilus. I unscrewed the candles and found black soot, it is clear that these candles did not want to work at all, an insulator cracked at one more candle . I don’t know, maybe I came across a fake (made in Thailand, not Japan), I bought it for another 1400 each ! But I had to put back the old Bosch plugs, which worked without problems .