Ruthenium Plugs?

I just ran across NGK's latest type of spark plug. They make a plug for the 3.5 ecoboost engines. Ruthenium is supposed to be a better conductor and harder material than platinum. Thoughts on these for longevity? Performance...

www.f150ecoboost.net

 

Thanks for that. I just didn’t know if I should change the gap on them or leave them at .32

 

I've been running these for over a year. I like to narrow the gap to 0.025". My engine runs the smoothest with that gap. Also, plug gaps tend to widen over time.

I will be replacing them in the fall. I will let you know if I find anything out of the ordinary.

 

20K on Ruthies gapped at 35. No problems. Probly 10K of that with close to 8000#s of travel trailer and a motorcycle in the bed. I’ll pull them at 30,000 miles and have a look C.

 

If your running them with that gap and have no issues, I’m gonna keep them at .032”. I’ll install this weekend and let y’all know how she runs. I have 77k miles on original plugs so I’m sure I’m gonna see a small performance increase. Thank y’all

 

I ran NGK's in my Honda's and Toyota's but stuck with OEM with this eco. Curious if there is any improvement over OEM for these guys...

I too am a 30K changer...(well 18K this last time since it was all apart.)

 

NGK makes the OEM plugs I think. Probably fordium though, not ruthenium.

 

I think we all or mostly all would be interested in Your reporting back on the condition of the plugs. I have routinely replaced mine at 30,000 miles and found the gap on average went from 0.030 to 0.035.

 

Yea this is why I may close the gap to .030. I’ll post pics this weekend.

 

Never heard that before. I was under the impression that Motorcraft plugs were manufactured by…motorcraft. I’ve been wrong before!


Tapatalk - it’s like bacon, for your phone.

 

I heard autolite manufactured motorcraft plugs until recently. Then ngk took over. Just what I heard I don’t know if it’s true

 

Hey anything is possible these days! Either way, if the NGK Ruthylineleom plugs work out, I am down!

 

2018 expedition max 3.5 v6 with 77k miles. Original plugs. No codes no misfires

 

What was the cost for a set of 6?

 

$72.69 from advance auto parts. I was having vibration at 70+ mph and this took care of it. No issues so far. Kept gap at .032”

 

That is a steep price, but I have been bolting high price items on this thing since I bought it!

If they work, sweet!

 

that’s nothing compared to the transmission fluid change I’m fixing to do. All parts including filter was 175 bucks. But PM work is cheaper than mechanical failure

 

They are only expensive If they don't work....