Im getting new spark plugs for my '99 SiR, and was wondering what type of plugs should i get?
a question that im most concerned with is the type of "metal" is best?
for example, which is the best.. copper, aluminum, platinum, silver, iridium, etc
i hear that silver is somewhat a bit better than the others, just want to hear your guys' opinions on this
and any info on which ones you guys use and how they've been treatin ya
thanks much =)

 

i have platnums in my civic right now. it came factory with platnums.

in my old engine i used iridiums, i liked them a lot it seemed to run a bit smoother (but i did new cap, rotor and wires at the same time.)

 

I have platinums also. I had an idling problem so I switched plugs. The new ones did the trick! I would say go with the platinums, the iridiums are overkill IMO.