Iridium or Ruthenium plugs?

[Splorg]

If I'm not mistaken, my 2001 Yuke (5.3L gas) came with iridium tipped plugs. NGK is now making another exotic metal plug tip, Ruthenium this time, that's supposed to be more durable and actually costs a few cents less than the Iridium plugs.

If the stock OEM plugs are already good for 100K, what's the advantage? At that rate the resistor will degrade or the ceramic insulator will fail before the plugs need replaced, right? Am I missing something? I've almost exclusively used the OEM plugs in all my cars, I figure they know best since they designed the thing.

I ask because next weekend is tune up time for Macho Grande, and I'm collecting what I need - MAF cleaner, new air filter, wires, plugs, stuff to clean the throttle body, Seafoam, etc. If you are using or have used these plugs, let me benefit from your experience!

Thanks all!

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[Scottydoggs]

seafoam it first, then change the plugs. with what ever you pick. no idea on the new plug. dont put the seafoam in the oil. ive heard of engines dying form that one. put some in the gas tank, and in the vac line off the booster.

 

[Sam Harris]

No idea about these new plugs. Personally, I’d prefer to replace them more frequently, rather that waiting “100k”, so I went with Platinum plugs, rather than iridium as well. $0.02

 

[Rocket Man]

I’d look for the unobtanium plugs if I were you. Best ever. Really hard to find.

 

[Mericas_Meuth]

I’d look for the unobtanium plugs if I were you. Best ever. Really hard to find.

Need to hitch a ride on SpaceX flight to Pandora, totally worth it though.

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[drakon543]

Need to hitch a ride on SpaceX flight to Pandora, totally worth it though.

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i dont know sully was pretty adamant about kicking all people off the planet that wanted any unobtainium. dieing by suffocating or a giant 4 foot 1 inch arrow with an extreme paralytic tipped poison doesn't sound worth it.

 

[Rocket Man]

i dont know sully was pretty adamant about kicking all people off the planet that wanted any unobtainium. dieing by suffocating or a giant 4 foot 1 inch arrow with an extreme paralytic tipped poison doesn't sound worth it.

For 3 MPG it is

 

[SnowDrifter]

******* L O L rocket man

On the real.... I have iridiums in mine. They work fine. NGK units (in b4 screeching)

 

[Rocket Man]

******* L O L rocket man

On the real.... I have iridiums in mine. They work fine. NGK units (in b4 screeching)

I use the ol copper plugs per Whipple’s recommendation for supercharged engines. MPG = 8-9. SPG= priceless.

 

[HiHoeSilver]

I’d look for the unobtanium plugs if I were you. Best ever. Really hard to find.

Best ever? You clearly haven't ever run adamantiums.