Really can't go wrong with either brand. Any difference you'll never feel.

 

I got mine from the dealership and no problem

 

I just bought ngk ruthenium. I'll see how it does soon

 

I have had great experience with ruthenium in my four different vehicles. They really hold up and in my case they were a little cheaper than the best iridium plugs by NGK or denso.

 

3rd gen 4runners came from the factory with NGK on one side and Denso on the other...what does that tell us?

 

Went with "NGK Laser Iridium Spark Plugs". Have not had a chance to install yet.

 

Both NGK and Denso will work. Various types of iridiums will have different life spans. Some are geared more for performance with slightly shorter lifespans.

Laser Iridium is the longlife one, a good plug for most purposes. I usually buy them from rockauto to avoid the flood of counterfeits out there. IMO between NGK and Denso, NGK makes the better plug, but both will work fine.

 

I don't know if this information can really help. But if you're replacing spark plugs. Check RockAuto's website, I like to use Denso or NGK parts a lot.

I bought NGK Ruthenium plugs. I wanted to give it a try the reviews I read around seemed positive. I read a lot of things about counterfeit parts being sold on Amazon and eBay so I ended up price-matching with Advanced Auto Parts. Feel free to give it a shot if you feel comfortable trying these plugs. If you don't want to try these plugs I would just stick with whatever originally came with the car. Probably some sort of Denso plug.

And to be honest with you. I don't notice anything different. I was just curious to try them because my spark plugs were due. I would say it maybe felt smoother for a day. But I feel like any new spark plug compared to an old one would make a difference slightly. My gas mileage is still the same. The only thing I can really think of that might be an advantage for the plug is the claim it's made out of a harder material "Ruthenium". So it could possibly end up lasting longer but at the time when I was researching about the plug. I couldn't find any long-term reviews anywhere so I don't know if the claim is necessarily true only time will tell. Buying this plug was more of an experimental thing for me. I was just really curious to try it for some odd reason. If this plug isn't something you want to try I just recommend going with the OEM plugs normally. I don't know the exact part number but it's generally some sort of Denso plug. I think I currently only have 15K miles on them and I don't have any complaints. Best of luck though.

 

NGK Laser is my choice as well. It’s an OEM plug.
Curious how Ruthenium does tho.


Sent from my iPhone using Tapatalk

I've been using the ruthenium plugs on four of my Toyotas for the last six or seven years. They appear to be equal in performance and our little cheaper in cost than the good NGK or then so iridiums

 

Yeah I'm looking to try out the NGK Rutheniums for next change. On rockauto they are just a few dimes more than long life iridiums (Laser Iridiums).

Always check NGK's e-catalog for proper plug applications.

Home - NGK Spark Plugs

NGK Spark Plugs (U.S.A.), Inc. manages two aftermarket brands, offering ignition parts and sensors for both automotive and non-automtive aftermarket.

ngksparkplugs.com

Rockauto 5% off discount code if you buy there, scroll to the latest post:
https://www.toyotanation.com/threads/rockauto-discount-code.360084/page-25

 

What ever my car calls for that’s what I use because that is what the car is made for