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Old 07-14-2020, 11:45 PM #1
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Anyone have feedback on NGK Ruthenium Plugs

Driving a 05 V6 Sport - not extreme conditions, except occasional Baja desert and LA traffic. 200k on engine w/one rebuild (prior owner must not have maintained). Otherwise going w/NGK or Denso Iridiums when I change my Amsoil Signature.

The Rutheniums don't seem to be in wide distribution, but curious nonetheless. Thanks
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Old 07-18-2020, 10:57 PM #2
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Hmm... you've caught my attention! I will have to check these out.

I'll say it now though, you'll not see any improvement on a stock naturally aspirated engine. These 4Runner eat spark plugs due to having a waste spark system so it's best to stick with the recommended plugs in your owners manual or service manual.
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Old 07-23-2020, 04:54 PM #3
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Funny
I have a 2012 Genesis and it is time to the change plugs (a task within itself!!). These came up on RockAuto as SUPERIOR plugs. I think I will try them. Thank you for posting this as it reminded me it is time.
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Old 07-23-2020, 08:44 PM #4
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I did this spark plug exercise at one point... iridiu this, long life that, plus mounds of reading and overthinking spark plugs.

Ultimately I just defaulted back to the owners manual. I decided to keep it simple and just use what they recommend.

It might not be exciting, but it works, and I have the piece of mind of not trying to reinvent the wheel on my own.
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Old 11-13-2020, 09:36 AM #5
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I've been running NGK 92400 FR7BHX-S Ruthenium HX Plugs now for six weeks. I chose them at range 7 to accompany the installation of the TRD SC. Ordered from Summit late February based solely on NGK marketing - no user reviews available back then. It took seven weeks for them to ship.

Since they went in with the SC, I can't comment on their performance contribution (truck says Vroom) and it's too soon to tell how well they'll hold up.
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Old 01-07-2021, 02:26 PM #6
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It's getting time to do mine and I am thinking of these as well. NGK 96355 {#LFR5AHX} Ruthenium HX.
Any updates on user experience yet?
Thanks,
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Old 01-08-2021, 09:03 PM #7
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Lightbulb Denso

Just did them on 14' ouch little more hassle that the 11' ! Denso came out denso went in pkh16tt platinum good for 30 -40k & now know the deal on replacing will be easier !
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