Changed my plugs after 38k (PICS)

[Yaristeve]

Originally Posted by johnny_vitz

NGK makes a quality plug for a good price. The only thing wrong with denso's most of the time (especially iridiums) is the price. The quality is there, they just want too much for them.

I can see how they're cheaper. Is that the only reason they're "better"?

Back in the day, the joke was, "NGK stands for No Good Kind". But, again, I never really saw how one plug could be better than another (for making power). I can see how quality might be different but then one would say, "xxx plugs are made better than yyy plugs."

Don't get me wrong; I am not defending Densos. I usually just walk into the dealership and ask for the right plugs and AFAIK, Toyota dealers always sells Densos.