Thread: What spark plugs do you use?

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Don, Dave, I would like someone on this forum to bring back an old "trick" as it were. So all those here do not feel I'm hogging the spotlight....Would you or anybody else wanna explain "indexing" the plugs? If not, I can do it. Just don't wanna pee on another preson's campfire.

It's pretty well accepted in the dirt bike world that Champions hole pistons. So, everybody runs NGK which are great. Are they the best? Nobody ever tries AC Delco or Bosch in the bikes. They are so sensitive to the heat range, nobody wants to risk cross-referencing. Some do run Denso plugs, but I think NGK and Denso are the same plugs. I personally am running Champions in my truck for no reason other than the price was right. Autolites kind of scare me, but I have no foundation for this.

Indexing isn't just for racers, it's also for direct injection engines :P

Indexing isn't just for racers, it's also for direct injection engines :P


Now that you mention that, I remember our Techs at the marina saying some outboard engines had to have the plugs indexed when we serviced them.

Don