IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Spark plugs...which brand to use?

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Old 01-18-09 | 02:48 PM
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Default Spark plugs...which brand to use?

So I am going to replace my spark plugs in about 6k miles. I'd like to get some feedback on which brand I should use and why? Thanks for any useful suggestions.
Old 01-18-09 | 03:02 PM
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what is your mileage? the interval for changing spark plugs is 60,000 miles. i would use oem plugs cause they use triple ground electrode unless you can find the same type of plugs from non-oem.
Old 01-18-09 | 03:36 PM
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I'm at 53.5k miles right now...changing at 60k as recommended by Lexus.
Old 01-18-09 | 04:10 PM
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Denso or NGK would be my preference
Old 01-18-09 | 05:02 PM
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why don't you just use OEM's i'm sure they are practically almost the same unless they put some crappy spark plugs in our cars.. which i doubt.
Old 01-18-09 | 05:19 PM
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I vaguely recall a thread a while back about plugs- the ones in these engines are slightly different due to the DI system, so at the time selection in the after market was pretty much zero
Old 01-18-09 | 05:55 PM
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lol what does it matter?

whatever they are, make sure they're iridium
Old 01-18-09 | 07:41 PM
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the OEM brand is NGK iridium ...
Old 01-18-09 | 08:13 PM
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oem NGK !!!!!!
Old 01-18-09 | 08:22 PM
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Factory factory factory parts..esp. when it comes to routine maintenance
Old 01-18-09 | 10:00 PM
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Don't touch the plugs at 6K miles, nothing to be accomplished.
Old 01-18-09 | 10:56 PM
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Originally Posted by IS-SV
Don't touch the plugs at 6K miles, nothing to be accomplished.
I'm CHANGING the plugs in about 6k miles. My mileage is just under 54k miles right now.
Old 01-18-09 | 11:15 PM
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the plugs are good for 100K ? (correct me if I am wrong)

I remembered the manual says Denso Iridium ???
Old 01-18-09 | 11:27 PM
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Originally Posted by kickin8
the plugs are good for 100K ? (correct me if I am wrong)

I remembered the manual says Denso Iridium ???
Bingo but i think it is 60k for replacement in manual

NGK are also very good plugs i have used it in the past.
Old 01-18-09 | 11:33 PM
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EG-130 ENGINE — 2GR-FSE ENGINE
3. Spark Plug
-Long-reach type spark plugs are used. This type of spark plugs allows the area of the cylinder head to
receive the spark plugs to be made thick. Thus, the water jacket can be extended near the combustion
chamber, which contributes to cooling performance.

-The triple ground electrode type iridium-tipped spark plugs are used to achieve a 60,000 miles (100,000
km) maintenance interval. By making the center electrode of iridium, it is possible to achieve superior
ignition performance and durability when compared to platinum-tipped spark plugs. Furthermore, two
ground electrodes have been added to further improve ignitability, wear resistance, and fouling resistance.



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