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spark plug choice?

Posted: Fri Nov 10, 2017 3:12 am
by spook
At the moment I can purchase any type of spark plugs at about $6- each at the local auto supply joint.
My question is, do I change to Iridium plugs?
Cheers,
Russell.

Re: spark plug choice?

Posted: Fri Nov 10, 2017 3:26 am
by evan_calgary
If your plugs need replacing then sure. They are longer life. Will you notice performance improvement simply switching them out? No. It would be such a fractionally minor improvement if any its not worth changing.

Re: spark plug choice?

Posted: Fri Nov 10, 2017 10:56 am
by RuZty
I ran Iridium plugs once, I didn't think they were noticeably better, but not worse either. If you can get them for $6 why not. Use the same range NGK, but IIRC the number ends in IX for Iridium.