Check out your manual because it will specify. When I had my 2013 I just looked in the manual and it said both NGK and Denso. I went with Denso because of the better warranty. When I pulled the originals turns out they were Denso anyway.

 

Iridiums plugs should last 100K miles...no need to use Ruthenium

 

Iridium vs Ruthenium which is better? Iridium has a higher melting point, it's harder with better corrosion resistance than Ruthenium. So why are spark plug companies going to Ruthenium? Simply cost and availability, Iridium is become very rare and going for over $4000 / Oz. , Ruthenium is $500 / Oz. For durability Iridium is the best metal to use with Ruthenium coming in at a close second.

 

Also don't buy Iridium plugs off the internet. Amazon is covered up in counterfeit plugs. They look real and the packaging is a good copy but they are fakes from China and Mexico using Nickel plated electrodes. A real set of iridiums will cost you +$70. You are guaranteed a legitimate set of plugs from your dealer.

 

After reading the previous post I'm wondering about the set of NGK plugs I recently bought from Rock Auto. Was ordering several other items and thought I'd get plugs for an upcoming service. The price seemed low; now I'm wondering if they're fakes. Is there any way to tell, or do you think Rock Auto only sells genuine?

 

Don't know about Rock Auto, but NGK has a web page listing retailers they sell to. Rock Auto isn't on the list, you could contact NGK and ask them

Where to Buy - NGK Spark Plugs

Where to buy NGK and NTK products near you.

ngksparkplugs.com

 

I've never gotten counterfeit parts from Rock Auto.

 

That you know of, I have

 

The dealership put Denso in the 2012, but I think NGK is better.

 

Just curious to know why you think NGK is better?

 

Received an answer from NGK about Rock Auto-supplied plugs. Quote: "We have yet to see any counterfeit parts from Rock Auto even though they are not an authorized distributor for NGK. The biggest culprits are Ebay and Amazon." So looks like they're the real thing.

 

I got multiple Ruthenium's from Rock Auto. If they are fake, they are working well as the cars run good and smooth.

They are in my daughters '08 CRV, sons '10 Forte, father-in-laws '16 Renegade. My Sonata had them also for a bunch of years before car was scrapped (major oil leak and engine vibration) but still started right up and ran.

I will be ordering them for my Accord at next planned maintenance time.

 

Dear all, thanks in advance for reading this thread and trying to help.

I just used the part-finder on Part Finder - NGK Spark Plugs, and for my 2011 V, it came up with four results (see Upload and share screenshots and images - print screen online | Snipboard.io).

Does anyone know the differences between these 4 NGK Spark Plugs (ILZKR7B-11S, LKR7AHX-S, LKR7BGP-S, and LKR7DIX-11S)? Are all of them guaranteed to fit with 3rd Gen V? Which one would have the longest expected lifespan (less maintenance in the future)?

Also, according to the sticky of "factory service manual" in this forum, It listed NGK: IZFR6K11 as the Spark plug (see Upload and share screenshots and images - print screen online | Snipboard.io). Is this part# still available? Is it because this might be an "older" version of NGK Spark Plug, that's why it was not no longer listed in the NGK part-finder?

Thanks again for your help!

 

There are several different types that will fit, the differences are what they're made of, platinum, iridium and the newest one especially for turbos and high performance engines is ruthenium, I might have misspelled it, but it's supposed to be the longest lasting plug. You can see all the different types of plugs for crv's at Rock Auto.

 

I bought the recommended Denso Iridium from a local parts store I trust (and get a discount at ), so I guess the Iridium LKR7DIX-11S would be fine. However, the IZFR611 you mention is listed as a Laser Iridium and is one heat range hotter. Who knows?

 

I bought the recommended Denso Iridium from a local parts store I trust (and get a discount at ), so I guess the Iridium LKR7DIX-11S would be fine. However, the IZFR611 you mention is listed as a Laser Iridium and is one heat range hotter. Who knows?

Thanks for your reply. You mentioned that the Laser Iridium is one heat range hotter, what's the implication of that? Does that mean that it should last longer?

Also when you replaced your original plug, was it Denso SKJ20DR-M11 installed by Honda? Thanks!

 

I'm running Lazer iridium in a 3.6 grand Cherokee overland and I bought ruthenium ngk plugs for my 2011 cr-v, which are supposed to last longer than other types of ngk plugs.

 

Found this article written by a mechanic in Japan: Denso vs NGK – Which Spark Plug Is the Better Choice? (carfromjapan.com)

 

I found this diagram from RockAuto (never purchased anything from them before)..

More Information for NGK 93175

It seems that the Ruthenlum HX is the best? Thoughts?

 

It seems that the Ruthenlum HX is the best? Thoughts?
View attachment 159216

Looks like you are correct. Are they expensive? I paid around 30 CAD each for the Densos.

 

These are rock auto usa screen shots for 2011 honda cr-v spark plugs, ruthenium almost a dollar cheaper than Lazer iridium.

 

I emailed NGK tech support about the "BEST" NGK plug for 3rd Gen V (especially for 2011), and this is the answer that I received:

"Thank you for your inquiry. ILZKR7B-11S is the actual OE plug, which is the best option for your vehicle for performance and service interval."

Just a quick FYI. Also, this article might offer some good info too. According to this article,
"Ruthenium is less expensive than Iridium, making it a more affordable option for some drivers.
However, Iridium is more corrosion-resistant than Ruthenium and has a higher melting point, making it a better choice for applications that require a high degree of heat resistance."

 

Many posts say Honda's use NGK or Denso plugs. Which specifically comes in the 2010 CRV? Has anyone tried the NGK Ruthenium plugs? I do not want to pull the plugs until I have the replacements on hand. Thanks

I installed ruthenium plugs in my 2013 CRV (179K miles) and so far, the car seems to be running very smooth.

 

I installed ruthenium plugs in my 2013 CRV ( 179K miles) and so far it seems to be running very smooth.

 

Ruthenium or Lazer Iridium from NGK, Lazer Iridium being the higher tier plug, both good for 100,000+ miles, can be bought from Rock Auto.