Originally Posted by Q Myers
Could well be fake. My Chinese motorcycle came new with a fake NGK plug. The resister inside disintegrated which let the center electrode move up into the porcelain which increased the gap to a point that it would stall at low RPM. Never had a problem with real NGK plugs.
That pic of the used plugs I posted have only been in the car for around 9 months with less than 20k miles on them. That (HUGE) gap you see measures about 0.104 on all of them! One can almost think they're the original plugs with 120k miles on them, but they're not. Unfortunately, I put the remaining 4 plugs in from my eBay purchase last year. Hopefully I won't be replacing them in another 9 months [emoji20]
2011 Nissan Versa HB 1.8S Magnetic Gray
2011 Nissan Versa HB 1.8S Expresso Black