Why use Iridium?

[SaNibOy]

I use iridiums plugs cos one thing for sure, they last very long. Performance super little so can skip tat part.

[Trex101]

I use iridiums plugs cos one thing for sure, they last very long. Performance super little so can skip tat part.

 

Like what Genie said, petrol are easy to burned but if you are running dual fuel engine like CNG or LPG, you will find the immediate benefit just by changing to a fine wired iridium.

 

My SUV used to have hesitation & starting problem when starting on LPG, enquire with the installer and the answer is LPG is like that, no choice, just have to start on petrol then switch to LPG after 2-5min of running. That installer has fitted hundreds if not thousands of LPG kit and that's the answer, very disappointed.

 

After doing some research on UK LPG website, found that LPG like CNG are very difficult to ignite and placed alot of demand on the ignition system, any slight deterioration of the ignition system and you will have hesitation & starting problem. Answer is to either lower the spark plugs gap(less power) or run a performance spark plugs.

 

Since i do not want to sacrifice power, i decided to changed to NGK IX and viola... problem solved.

[Humblepie]

I went for a tuning at a well known garage and they changed the plug to Iridium for me at $35/each. These were supposed to last at least 15K Km. After about 10K km along with an oil change, I'd decided to changed the plugs to the conventional NGK type at less than $3/each.

 

The car ran smoother on the conventional plug. The conventional plugs will not last as long, but at this price you can change them more regularly. Just get the heat range suitable for your car - according to the manual.

 

IMO - don't waste your money.

[Octopus]

I went for a tuning at a well known garage and they changed the plug to Iridium for me at $35/each. These were supposed to last at least 15K Km. After about 10K km along with an oil change, I'd decided to changed the plugs to the conventional NGK type at less than $3/each.

 

The car ran smoother on the conventional plug. The conventional plugs will not last as long, but at this price you can change them more regularly. Just get the heat range suitable for your car - according to the manual.

 

IMO - don't waste your money.

 

Did you miss a "0" in the mileage mentioned? My copper spark plugs already exceeded 20k km, I intend to replace it when it each 30k km and check the gap.

[Tom_kkh]

if u service yr car regularly, normal spark plugs will do.

 

my friend's car never service for 3 years, when he went, his normal spark plug is still in working condition.

 

imo, unless u have done enhancement to yr engine, eg ecu remap, bigger air port, spark optimized, etc, than maybe it will compliment the upgrades, than again, how many ppl in this world is sensitive enough to feel a 1-5bhp increase in their engine.

[Mini-itx]

I went for a tuning at a well known garage and they changed the plug to Iridium for me at $35/each. These were supposed to last at least 15K Km. After about 10K km along with an oil change, I'd decided to changed the plugs to the conventional NGK type at less than $3/each.

 

The car ran smoother on the conventional plug. The conventional plugs will not last as long, but at this price you can change them more regularly. Just get the heat range suitable for your car - according to the manual.

 

IMO - don't waste your money.

 

WTF! $35 per plug!! OMG!! Thats chop carrot head.....

[Mini-itx]

I use iridiums plugs cos one thing for sure, they last very long. Performance super little so can skip tat part.

 

OK, lar. I feel the price is still quite OK. $50-$60 for a set of 4 plugs is quite ok since they can last very long.

 

Only issue is have to check once in a while for fouling and gapping.

 

Although tip is iridium, grounding tip is not iridium and it does wears out. Thus have to regap to maintain optimum performance and prevent misfiring.

 

Btw, if you are using high performance ignition systems (like those from MSD, Crane etc).... You will appreciate iridium plugs because copper plugs just cmi. They don't last at all. The stronger sparks results in very high wear.

[Yuan]

Did you miss a "0" in the mileage mentioned? My copper spark plugs already exceeded 20k km, I intend to replace it when it each 30k km and check the gap.

 

I was also thinking along that line. Copper usually lasts 20k to 30k mileage.

 

Iridium should be longer. Coupled with checking of the plugs during servicing.

[Devilcup]

toking about checking, i thinking to get the tool to get the SP out and check

 

[Gtech_koh]

toking about checking, i thinking to get the tool to get the SP out and check

 

Can I check where to get the tool and is there a standard size or not?

Thanks

[5936]

My previous and current toyota comes with factory installed iridium.

Replaced at 85K but actually still can go further.

U may want to check with with Agent if Vios have iridium plugs from factory.

[Yuan]

toking about checking, i thinking to get the tool to get the SP out and check

 

No need to rush. You can always get the mechanic to check for you during servicing.

[Mini-itx]

Can I check where to get the tool and is there a standard size or not?

Thanks

 

Just get it from autobacs. They have it.

[Pisces69]

Just use normal copper plugs and change every 20K. Cheap and good. $2.50 for one.

================

 

Yup thats what I do. Cheap & good.

 

Just make sure u use the correct heat range plug & I prefer made in Japan or at least Korea. I tried the Thai & Indo plugs & they were also without problems.

 

The only plugs which I found really bad were the made in MY plugs. <5K km & the engine wud jerk on hard acceleration. My usual plugs I only change every 20K km & I dont notice any power drop even at 20K km.

 

[Pisces69]

Like what Genie said, petrol are easy to burned but if you are running dual fuel engine like CNG or LPG, you will find the immediate benefit just by changing to a fine wired iridium.

 

My SUV used to have hesitation & starting problem when starting on LPG, enquire with the installer and the answer is LPG is like that, no choice, just have to start on petrol then switch to LPG after 2-5min of running. That installer has fitted hundreds if not thousands of LPG kit and that's the answer, very disappointed.

 

After doing some research on UK LPG website, found that LPG like CNG are very difficult to ignite and placed alot of demand on the ignition system, any slight deterioration of the ignition system and you will have hesitation & starting problem. Answer is to either lower the spark plugs gap(less power) or run a performance spark plugs.

 

Since i do not want to sacrifice power, i decided to changed to NGK IX and viola... problem solved.

===============

 

U using LPG? Which country is that?

[Lala81]

I cant comment for vios.

 

But i drive an altis.

After i changed to the iridium spark plugs in toyota servicing, the difference in engine responsiveness is fairly significant. I changed at 20k servicing.

 

I dun pretend to understand automative mechanics and i noe its just mostly placebo effect for a lot of car stuff. But it was significant.

My friend had the same experience.

 

[Pisces69]

I went for a tuning at a well known garage and they changed the plug to Iridium for me at $35/each. These were supposed to last at least 15K Km. After about 10K km along with an oil change, I'd decided to changed the plugs to the conventional NGK type at less than $3/each.

 

The car ran smoother on the conventional plug. The conventional plugs will not last as long, but at this price you can change them more regularly. Just get the heat range suitable for your car - according to the manual.

 

IMO - don't waste your money.

==============

 

Your Iridium only last 15K km? My standard copper plugs easily last 20K km.

 

[Pisces69]

WTF! $35 per plug!! OMG!! Thats chop carrot head.....

===========

 

Maybe core is made from solid gold?