Best performance spark plug for gasoline sedan

**robot.sonic** · May 22nd, 2018 10:51 AM

Originally Posted by PATSYS

I could swear the acceleration got better when I shifted to Iridium vs stock/regular plugs.

Kasi bago na spark plug mo. Yung na notice mo na better performance ay yung restored na power.

**Egan101** · May 22nd, 2018 10:57 AM

Originally Posted by Walter

Really? Isn't 5-6T kms too frequent? ...

I guess that would be fine if the plugs are rated for up to 10k km. For plugs rated up to 100k km, maybe it is good to check them in 30k-40k intervals.

**StockEngine** · May 22nd, 2018 12:05 PM

Originally Posted by benchph1

Correct. Spark plugs degrade overtime. Even if they say that it can last up to 20,000 kms, i dont use them for that long. Mas mura na naman ang iridium plugs kaysa dati. I just replace them around 5-6t kms

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a 30,000km rated copper plug is probably good for 400hrs.

karamihan wala pang 30000km naka 1500hrs na lol. low power daw! missfire!

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**bloowolf** · May 22nd, 2018 08:06 PM

When I still had gasoline cars, I replaced the stock (Nippon Denso or NGK) with Bosch Platinum & just gapped it myself 2x a year. With the stock plugs, I replaced them every 5k. With the Bosch Platinum, sometimes more than a year or whenever I feel like it runs rough already. There are corresponding replacement performance plugs for the stock ones. You can use the best, just as long as it is more superior to the stock ones. Also, it is worth learning to gap them, practice with the old ones.

**polar01** · May 22nd, 2018 08:27 PM

Originally Posted by Egan101

I guess that would be fine if the plugs are rated for up to 10k km. For plugs rated up to 100k km, maybe it is good to check them in 30k-40k intervals.

I haven’t changed my stock iridium plugs in my 2010 Honda City. The manual reco is to change every 100k kms, but its160k kms already with no issues. FC is at 12.4km/li. [emoji4]

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**benchph1** · May 22nd, 2018 08:56 PM

Originally Posted by polar01

I haven’t changed my stock iridium plugs in my 2010 Honda City. The manual reco is to change every 100k kms, but its160k kms already with no issues. FC is at 12.4km/li. [emoji4]

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You havent taken the plugs out to clean and check the gap?

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**polar01** · May 22nd, 2018 09:11 PM

Originally Posted by benchph1

You havent taken the plugs out to clean and check the gap?

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Nope. [emoji51]

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**Lin Dan** · May 24th, 2018 01:53 AM

For newer cars with modern engines, you can't really say the difference between a regular spark plug compared to an expensive one.

You just need to clean them every 5k and change them every 10k. Like in my case usually copper core conventional spark plugs lang nagamit ko dati.

**jick.cejoco** · May 24th, 2018 05:25 AM

One of the reasons why platinum or iridium plugs are used is because of longer service life. A lot of newer cars takes time to replace the spark plugs. The labor in most cases outweigh the cost of the plugs. I remember when I used to work at a dealership shop, a customer wanted a minor tune-up for a 1990 Cadillac with Northstar V8 and he wanted it done while he waits, I gave his keys back and asked him to bring it back when it's convenient fo him without me burning my arms to replace the plugs on the firewall side. It all depends what car you intend to replace plugs.

**StockEngine** · May 24th, 2018 08:11 AM

Originally Posted by jick.cejoco

One of the reasons why platinum or iridium plugs are used is because of longer service life. A lot of newer cars takes time to replace the spark plugs. The labor in most cases outweigh the cost of the plugs. I remember when I used to work at a dealership shop, a customer wanted a minor tune-up for a 1990 Cadillac with Northstar V8 and he wanted it done while he waits, I gave his keys back and asked him to bring it back when it's convenient fo him without me burning my arms to replace the plugs on the firewall side. It all depends what car you intend to replace plugs.

yun hemi v8 16 spark plugs and needs a dash board removal [emoji28]

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