Spark Plugs, Platinum or Iridium? Options

[Cutrara]

Which is better for my engine? I'm doing a tune-up here shortly and I was wondering what the difference was.

Thanks,
Alex Cutrara

This post has been edited by Cutrara: Jun 12, 2005 - 10:12 PM

[Newbie]

NGK?

[Mr_E]

For a bog standard 5S, copper will work just fine.

I run NGK iridiums, but I run a bar of boost and expect 60,000 miles out of them.

[Batman722]

For a bog standard 5S, copper will work just fine.

I run NGK iridiums, but I run a bar of boost and expect 60,000 miles out of them.
[right][snapback]298223[/snapback][/right]

he is correct. From what I have read in the past, copper is just fine for our engines.

[mark_426]

^^ What he said. Iridium for my 3s, platinum or copper for the 5s

[Cutrara]

I don't need performance plugs, I can't really do much for performance (mean parents) so I guess copper will do fine.

Thanks for the help.

[OOBE]

Yeah, I run NGK Iridium IXs on my Supra and grade 8 NGK V-Powers on the Celica.

[lake1069]

if you have a GT you need to run NGK platnium and this i say because it is on the left side on the engine on a silver tag also i work at advance and that is the OE recommendation.