Iridium Spark plugs.. is it worth the addtl cost?

**archerwin** · May 16th, 2007 05:07 PM

I'm having my 2006 honda city 1.3 cvt serviced for 20,000km. it's time to replace the stock spark plugs. Honda quoted an estimate of 7k (Honda Synthetic oil/regular spark plug) and 8.5k (Honda Synthetic oil/Iridium spark plug).

Question:
(1) is the supposed benefits in using Iridium spark plugs worth the 1.5k price difference? Honda sched for replacing spark plugs is every 20,000 km.
(2) primary benefit that i'm looking for is Fuel Economy (currently mine is ~13km/l), can iridium sp still increase this?

thanks in advance!

**blast_o_rama** · May 16th, 2007 06:37 PM

i think this will not increase ur fuel efficiency but it will increase the acceleration and denso iridium is much cheaper on some honda parts
dealer.

**mazdamazda** · May 16th, 2007 06:45 PM

only use iridiums if it is the stock plugs of your vehicle (like the Rav4 & Cefiro).

other than that - you are generally throwing money down the drain.

**hyperthread** · May 16th, 2007 09:21 PM

napakamahal ng change oil mo po at tune up.. kay SpeedyFix ka na lang po.
2,100 may Motul synthetic oil ka na..

**archerwin** · May 17th, 2007 02:09 PM

ok lang. 20k km service naman hindi oil change lang.

pag hindi na siguro warranty sa labas na ako mag papa service.

**Asus700** · May 17th, 2007 04:25 PM

warranty will be lost if pms was not done at casa during the warranty coverage period, so no choice. but iridiums for fuel economy? some say that they benefit, some say that they dont.

i think for the most part, only those with high performance engine benefits from it.

**mazdamazda** · May 17th, 2007 05:48 PM

mahal naman pala din ng PMS ng Honda City... 7K para sa synthetic oil + spark plugs...

**Galactus** · May 17th, 2007 05:53 PM

One thing sure about Iridium plugs:

You will notice that your wallet will become lighter.

**niky** · May 18th, 2007 11:54 AM

Synthetic, eh... plus x2 yung labor... eight plugs ang papalitan...

Sounds okay... as far as casas go. But I don't think you'll need Iridium plugs at such short change intervals... not unless Honda is willing to extend the change interval because you're using those fancy plugs. If they don't want to extend the change interval, it's probably not worth it except for maybe 0.5 hp of additional power...