Spark Plugs - Toyota Yaris Forums

Faheem Hussain · 06-05-2016, 02:20 AM

What is the best spark plug for Toyota Vitz 2008?

jcboy · 06-05-2016, 05:50 AM

re your question, best is a matter of category.

financial aspect: OEM is best

other aspects: i have no idea, though i've tried Bosch platinum before, and it performed really well over OEM Honda plugs and costing only about US$1 more each ($3 vs. $2)--but that can also be because it's for a relatively older engine.

jack black · 06-05-2016, 05:11 PM

bosh platinum is a bad idea.

OEM is a good idea.
I'm also partial to denso TT spark plugs.

joell · 06-05-2016, 05:20 PM

Denso and NGK are normaly found as factory installed in our engines.

Tinkerman · 06-05-2016, 05:49 PM

NGK iridium is the best.

jcboy · 06-05-2016, 08:45 PM

Quote:

Originally Posted by jack black

bosh platinum is a bad idea.

OEM is a good idea.
I'm also partial to denso TT spark plugs.

OUCH. ok i take that back. well in my defense i did replace the plugs every 10k kms, as they were nonOEM and i wanted to play it safe. So yes, OEM seems best still.

tarkus · 06-06-2016, 08:09 AM

I use NGK Iridium

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Tinkerman · 06-06-2016, 07:40 PM

I used NGK for all 5 but one the F150 can only do OEM Motorcraft, what a blow.

rningonfumes · 06-07-2016, 10:52 PM

Quote:

Originally Posted by jcboy

OUCH. ok i take that back. well in my defense i did replace the plugs every 10k kms, as they were nonOEM and i wanted to play it safe. So yes, OEM seems best still.

Every 10,000k??? They're good for about 160,000 km

tarkus · 06-08-2016, 11:04 AM

And why does being OEM make them better? I tend to think the opposite.

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fnkngrv · 06-08-2016, 11:47 AM

As another resource if you use Facebook there is my group there called "The Toyota 1NZ Enthusiast's Garage". I have several documents stored in the group and one of them for example is a whitepaper about spark plugs from NGK.

The Toyota 1NZ Enthusiast's Garage

Anyway, I am actually officially sponsored this year by Autolite and from what I can tell they are a solid choice along with NGK. If you are running stock then I would stick with the Iridium as they are what the engine comes with.

Tinkerman · 06-08-2016, 04:07 PM

Quote:

Originally Posted by tarkus

And why does being OEM make them better? I tend to think the opposite.

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You need to re-thinking.

fnkngrv · 06-08-2016, 04:11 PM

Quote:

Originally Posted by Tinkerman

You need to re-thinking.

I tend to agree. I would only not go OEM if they weren't readily available and you needed them immediately.

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B.B._07 · 06-08-2016, 08:35 PM

Quote:

Originally Posted by tarkus

And why does being OEM make them better? I tend to think the opposite.

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The correct plugs to use in an 08 Yaris are Denso SK16R11 or NGK IFR5A11. There is nothing special about those plugs but the engine is designed to run best when using those plugs. You could use plugs other then the two listed but they have to be iridium tipped and in the same heat range. Iridium tipped plugs are pricey but they offer very long life (Toyota recommends changing the plugs at 120K or 144 months) and a very consistent spark. Old school inexpensive copper core plugs have the strongest spark but short lifespan, and platinum tipped plugs where developed before iridium to address the short comings of copper core plugs but have the poorest conductivity. I've found that putting platinum plugs in an engine designed for copper core plugs generally results in a engine running worse than before.

tarkus · 06-09-2016, 12:32 AM

I am using NGK Iridium IX plugs. While the OEM plugs, especially in the case of Toyota, will be good, we need to remember the car manufacturer is always making cost compromises. So with plugs, as with many other parts, you can get something a bit better if you don't mind paying a little more.

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tarkus · 06-09-2016, 12:35 AM

Quote:

Originally Posted by Tinkerman

You need to re-thinking.

Seriously dude?

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jcboy · 06-09-2016, 12:21 PM

Quote:

Originally Posted by rningonfumes

Every 10,000k??? They're good for about 160,000 km

haha yeah, i didnt know any better then, was in college, google wasn't as readily available as it is now...in short, i thought plugs were like oil changes. (every 10k kms)

fnkngrv · 06-09-2016, 12:25 PM

I have traditionally changed mine on all my vehicles once a year. May be overkill, but it's what I do.

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06-05-2016, 02:20 AM	#1
Faheem Hussain I've made a post! Drives: Toyota Vitz 2008 Join Date: Jun 2016 Location: Dhaka, Bangladesh Posts: 1	Spark Plugs What is the best spark plug for Toyota Vitz 2008?

06-08-2016, 11:47 AM	#11
fnkngrv Mr. 155 and climbing View User's Garage Drives: Seriously Modded 07 Sedan Join Date: Jun 2006 Location: In The Hotbox Posts: 4,742	As another resource if you use Facebook there is my group there called "The Toyota 1NZ Enthusiast's Garage". I have several documents stored in the group and one of them for example is a whitepaper about spark plugs from NGK. The Toyota 1NZ Enthusiast's Garage Anyway, I am actually officially sponsored this year by Autolite and from what I can tell they are a solid choice along with NGK. If you are running stock then I would stick with the Iridium as they are what the engine comes with. __________________ Team Tiamat Racing on Facebook Youtube Channel: Team Tiamat Racing *Class record holder in Land Speed @ 154.5mph for 1.5 mile and 145.5mph in the mile in the F (2.016 to 3.014 L), G (1.524 to 2.015 L), and H (1.016 to 1.523 L) classes.*

06-09-2016, 12:25 PM	#18
fnkngrv Mr. 155 and climbing View User's Garage Drives: Seriously Modded 07 Sedan Join Date: Jun 2006 Location: In The Hotbox Posts: 4,742	I have traditionally changed mine on all my vehicles once a year. May be overkill, but it's what I do. Sent from m-o-b-i-l-e __________________ Team Tiamat Racing on Facebook Youtube Channel: Team Tiamat Racing *Class record holder in Land Speed @ 154.5mph for 1.5 mile and 145.5mph in the mile in the F (2.016 to 3.014 L), G (1.524 to 2.015 L), and H (1.016 to 1.523 L) classes.*

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06-05-2016, 05:50 AM	#2
jcboy Drives: Sedan 07 Join Date: Oct 2012 Location: Asia Posts: 478	re your question, best is a matter of category. financial aspect: OEM is best other aspects: i have no idea, though i've tried Bosch platinum before, and it performed really well over OEM Honda plugs and costing only about US$1 more each ($3 vs. $2)--but that can also be because it's for a relatively older engine.

06-05-2016, 05:11 PM	#3
jack black Drives: 2007 red Yaris HB AT Join Date: Dec 2013 Location: southeast USA Posts: 197	bosh platinum is a bad idea. OEM is a good idea. I'm also partial to denso TT spark plugs.

06-05-2016, 05:20 PM	#4
joell Drives: 2013 Hatchback Join Date: Dec 2012 Location: Panama, Central America Posts: 57	Denso and NGK are normaly found as factory installed in our engines.

06-05-2016, 05:49 PM	#5
Tinkerman Drives: Yaris 5 speed Join Date: Feb 2016 Location: NY Posts: 37	NGK iridium is the best.

06-06-2016, 08:09 AM	#7
tarkus Drives: 2006 Yaris RS 3-Door Join Date: Feb 2016 Location: YYZ Posts: 329	I use NGK Iridium Sent from my LG-D801 using Tapatalk

06-06-2016, 07:40 PM	#8
Tinkerman Drives: Yaris 5 speed Join Date: Feb 2016 Location: NY Posts: 37	I used NGK for all 5 but one the F150 can only do OEM Motorcraft, what a blow.

06-08-2016, 11:04 AM	#10
tarkus Drives: 2006 Yaris RS 3-Door Join Date: Feb 2016 Location: YYZ Posts: 329	And why does being OEM make them better? I tend to think the opposite. Sent from my LG-D801 using Tapatalk

06-09-2016, 12:32 AM	#15
tarkus Drives: 2006 Yaris RS 3-Door Join Date: Feb 2016 Location: YYZ Posts: 329	I am using NGK Iridium IX plugs. While the OEM plugs, especially in the case of Toyota, will be good, we need to remember the car manufacturer is always making cost compromises. So with plugs, as with many other parts, you can get something a bit better if you don't mind paying a little more. Sent from my LG-D801 using Tapatalk