About to replace the spark plugs in my 03 i35 3.5 engine. I saw where there was a new spark plug called Ruthenium, a step above Iridium. I was wondering if anyone has these installed and are they worth the money at $8 per plug.

 

It's all about longevity, as in how often do you want to replace them? Pick what fits your needs or budget. Stick with NGK please.

 

Thanks man

 

Go with the factory plugs. They work fine.

 

Best answer here.

 

So what ... you get 100K miles o/o this Ruthenium stuff?

At $8.00/ea. that's $48.00 for 100K miles.

Coppers, on the other hand (which conduct much better and more efficiently) are $1.45/ea.

Replacing those every 30K, not only are using a better performing plug, your saving $35+ over the same 100K miles.

Can't go wrong with tried and true, no-mystery-to-them NGK coppers.

 

The factory plugs go 100k miles, so I really don't see a reason to reinvent the wheel here. Coppers are fine too.

 

NGK Iridium plugs last forever and only cost 28 dollars. 120K+ on sister's old maxima and I'll probably swap em out into the new one lol.
You're doing maintenance wrong. No one wants to swap out coppers when they get eaten up or foul out (and you have to do it, b/c it's misfiring).

Feel free to check youtube. After 100K, they're still like new.

 

i had ngk g-powers and they wore out pretty good at about 40k
they are platinum i believe.

put in ngk iridium and got a 30 mile jump per tank.

copper is if you're turboed and need a heat range or looking for top performance.
or if u just like changing them because it makes you feel like a MAN.

on my turbo bmw i change the coppers every year they are pretty trashed i highly recommend don't get coppers
and get iridium.

i changed stock iridum plugs on a 60k versa. they where pretty worn, but they could of gone some more k, it's a versa.
took some pictures will post them in a bit.

 

they where like 30k to 40k can't remember exactly, but they are at end of life.
copper wouldn't even come near 30k they would round off and perform like shiit without even knowing because u drive a stock maxima. haha i joke but not really

by https://www.flickr.com/photos/156811228@N08/, on Flickr

 

Yep. AND....since I pull my coppers every 30k, I know how things are burning and that they are not somehow frozen in there after 150k miles.

Cheap, too.

 

This guy ^^^^^^ is right. Isn't your labor worth anything ???

 

It's very unlikely to seize in an aluminum head (although, people have broke off cheapo plugs after way too long use). Besides, that's what anti-seize is for when installing anything you want to stay free.

 

Use whatever you have. It doesn't matter. You'll never know the difference between one or the other and you won't have the car long enough to figure it out anyway.

 

Golly ... folks getting sh** for performing routine/regular maintenance at routine/regular intervals.

It's apparent that, to some, their vehicle is simply a means of transportation.

In my GT-40 equipped Ford SVT 351W, I use copper and change them twice a year.

Changing plugs doesn't necessarily make me feel like a MAN , but driving my GT-40 equipped Ford SVT 351W certainly does.

 

"Fix Or Repair Daily" vehicles require much stricter maintenance schedules.

 

Plugs don't require regular maintenance. I think that's the point. Everything else on the car is worth more attention than plugs. Spend that wasted time on something else.

 

Like your Ford.

 

ngk platinum, no questions.


i am doing a 60k tune up at 256k on monday. and doign ngk platinum

 

If my interpretiation of this statement is correct and you’re indicating that spending time ... and money ... on my Ford, is a waste, you are truly ignorant and have absolutely no idea what you’re talking about.

If I’ve misinterpreted the statement, please clarify and a I apologize for my abrupt rebuttal.

 

He hates ford. I don't blame him. He's probably been burned.

 

well thanks for the replies guys, but i read that the Ruthenium plugs have just as much spark as copper, and last as long as iridium plugs, ngk of course. I like the copper but dont want to be changing plugs every year or 2. I need to see what is inside the motor and maybe just install what is in there.

 

It's all in jest. I could care less. If it was a Chevy, I'd have made a stab at Chevy. Just doin my job.

Your stang is pretty sweet though. I had an '98 SVT Cobra for a couple years. Lots of fun. I did prefer my '99 Trans Am, though. It just looked better lowered, in my opinion.

 

Not a mustang ... it’s a 1st generation F150 Lightning.

Even though I consider myself a Ford-guy. Well, old(er) Fords anyway, I always have coveted the 1977 T/A.

That is still, in my mind, about the best handling car I’ve ever driven.