Spark plug NGK or Autolite

Just changed mine out for the second time 2012 w/ 172k. Misfire engine code. NGK iridium. Getting 10 more mpg. Best 50$ I’ve spent in a long time

Iridium will last longest. Grab them if you race or run the piss out of that bike but for all intents and purposes a plain old NGK is plenty adequate for everyday riding and then some.

I put autolite's in my 2010 V6 and they've been perfectly fine.

Ngk have been pretty reliable motor craft is pretty good too but I've seen good life spans for both.

Very broadly, only use NGK, Denso, Bosch, or Champion.

according to my halfords e- receipt i last used cr8 iridium plugs, no complaints here.

NGK all day, compared to all others they’re just made better, I bought Bosch platinum for a VW and the OE came out were NGK, after 50k they were still visually a better manufactured plug. Example- the plating on the Bosch threads was rougher.

I've seen with a digital tachometer a 1,000rpm difference between a laser brand spark plug and the oem ngk spark plug in a chainsaw. So for me it's what the oem uses is what I put back in.

the autolites are bottom of the barrel, i've only used them once when i was young and dumb and ofc they busted while trying to repair and remove after.

Yeah, get rid of those: autolite is junk.