Iridium spark plugs: yes or no?

**pitbullz** · May 2nd, 2006 10:09 AM

why bother

so i guess its a NO

**manilenio** · May 3rd, 2006 12:02 AM

umm... ok... so... if I have a stock engine, using iridium plugs won't increase power nor improve mileage, but will lessen the need to replace the spark plugs every tune up... right? I have an Altis, so NGK or DENSO?

**speedyfix** · May 3rd, 2006 12:23 AM

nah not really. on modded engines tho it's a decent mod. makes up one of the 3 main principles of producing power:

fuel
air
spark

plus, with modded engines you've normally spent a lot on other things narin that 2k+ for plugs is a decent amount na for keeping everything working well.

**al_motor** · May 3rd, 2006 12:32 AM

if intending to use these plugs on a tuned car, just make sure that your engine won't run a rich air/fuel mixture.

**lakay** · May 3rd, 2006 11:39 PM

Originally Posted by pitbullz

why bother

so i guess its a NO

Well, it really depends upon you. Platinum and Iridium plugs last a lot longer than regular plugs. What your buying is convenience. for not changing or re-gapping your plugs more often (lets just say every 150,000 km or 100,000 miles). As for me, I bought one because its a real pain changing plug # 6.

**notarius** · May 3rd, 2006 11:40 PM

NGK Iridiums are stock plugs for my ride. Works well. I have a turbo engine and my first tuneup was 30 months from date of purchase or 24K kms later.

**enegue** · May 15th, 2006 04:33 PM

I have seen the spark of the ngk Iridium and ordinary plug,
there is an exhibit in Japan comparing the two, iba ang spark between the two sa iridium.... its a very small arrays of sparks so medyo malaki yung area nya
doon naman sa ordinary one point lang ...so its also helps in the combustion
so hindi lang naman siguro dahil sa harder metal, it will affect complete combustion of your fuel.... cleaner exhaust gas and fuel efficiency....

**mazdamazda** · May 15th, 2006 05:09 PM

it is a waste of money if you have a stock engine (that doesn't require one).

though the Rav4 & Cefiro have OEM Iridium Spark Plugs that are rated to last for 100K km. aftermarket Iridiums can only run for 20-30K km.

**rayban7g** · May 18th, 2006 12:14 AM

Originally Posted by mazdamazda

it is a waste of money if you have a stock engine (that doesn't require one).

though the Rav4 & Cefiro have OEM Iridium Spark Plugs that are rated to last for 100K km. aftermarket Iridiums can only run for 20-30K km.

..really???

...ayus ahh!.. up to 100k??? ...to much I think! aftermarket plugs for 20-30k kms only? ngeeekk!! ..how could that be?..
eh di OE ng Rav4/Cefiro na lang bibilin ko!!..harharhar!!...