50,000 miles, which spark plugs?

lightblade · Jul 25, 2005

the clock just rolled past 50,000 miles on my 01 GT, im changing the oil, coolant, transmission fluid and running seafoam through her, i also wanna put in new spark plugs, any recommandation for some good "perfromance" based plugs for my stang?

Torinalth · Jul 25, 2005

i did the same thing you did, though i waited till 70k. i went with the autolite 764 coppers. did well, though i think i will end up going with NGK next time and see if i can get my hands on those AR70 (i think thats the model)

Torinalth

timeless2 · Jul 25, 2005

ngk

http://www.rpmoutlet.com/ngkinfo.htm

lightblade · Jul 25, 2005

what kind of ngk?

timeless2 · Jul 25, 2005

lightblade said:
what kind of ngk?

Everything you could possibly wonder...

http://forums.modulardepot.com/showthread.php?s=&threadid=2218

lightblade · Jul 25, 2005

thanks!!

timeless2 · Jul 25, 2005

lightblade said:
thanks!!

N-E time!

Kilgore Trout · Jul 25, 2005

Motorcraft AGSF-32C

Seraphitia102 · Jul 25, 2005

Autolite Double Platinum plugs work wonderfully for the Mustang, I just got them back 3 months ago.

lightblade · Jul 25, 2005

ytigyik

wms004 · Jul 25, 2005

save your money and do Autolite's every 30 thousand miles.

Mustang5L5 · Jul 25, 2005

Motorcraft AGSF-32C or Autolite 764 COPPER Plug.

Do not do platnium plugs. Platnium is not good for performance at all. The only benefit of plat plugs is extended time between plug changes. Copper is what you want for performance.

XXBULLETSXX · Jul 25, 2005

Mustang5L5 said:
Motorcraft AGSF-32C or Autolite 764 COPPER Plug.

Do not do platnium plugs. Platnium is not good for performance at all. The only benefit of plat plugs is extended time between plug changes. Copper is what you want for performance.

Please explain...

I thought platnium plugs were like the best. Next to those multi tipped plugs. Since I'm nearing the 50K mark on my 2000 GT I better figure this out.
Thanks!

Mustang5L5 · Jul 25, 2005

XXBULLETSXX said:
Please explain...

I thought platnium plugs were like the best. Next to those multi tipped plugs. Since I'm nearing the 50K mark on my 2000 GT I better figure this out.
Thanks!

Actually, plats and multi-tip plugs are the worst for performance.

Platnium is a poor conductor of electricity. Silver is the best, followed by Copper, Gold and Aluminum. There are a few other metals before we get to platnium. Reason platnium plugs are used is because they are hard. They don't wear down as fast as copper plugs so you can leave them in the engine longer. The very first cars to come with plats were luxury cars. Why pay to change spark plugs at 20K, 40K and 60K miles when you can buy a car that needs them done once at 60K. Less maintainence was appealing to the non-car savvy elderly people buying those lincolns and caddys. Todays engines are so cramped, its a PITA to do plug changes. So that's why most car manufactures us plat plugs in almost all their cars. Now Platnium is expensive, so the plugs cost a little more to buy. And as we all know, sometmes people figure if it costs more, it must be better.

As for multi-prong plugs, well electricity can only use 1 prong at a time. It takes the path of least resistance. You could have 50 prongs and it will only hit 1 at a time. The other prongs just sheild the air/fuel mixture from the spark.

Mustangs are easy to do plugs on, so there really is no need for a plat plug. Changing them every 15-20K miles is no big deal. That's why you should just stick with simply single-strap copper plugs.

Kilgore Trout · Jul 26, 2005

Mustang5L5 said:
Actually, plats and multi-tip plugs are the worst for performance.

Platnium is a poor conductor of electricity. Silver is the best, followed by Copper, Gold and Aluminum. There are a few other metals before we get to platnium. Reason platnium plugs are used is because they are hard. They don't wear down as fast as copper plugs so you can leave them in the engine longer. The very first cars to come with plats were luxury cars. Why pay to change spark plugs at 20K, 40K and 60K miles when you can buy a car that needs them done once at 60K. Less maintainence was appealing to the non-car savvy elderly people buying those lincolns and caddys. Todays engines are so cramped, its a PITA to do plug changes. So that's why most car manufactures us plat plugs in almost all their cars. Now Platnium is expensive, so the plugs cost a little more to buy. And as we all know, sometmes people figure if it costs more, it must be better.

As for multi-prong plugs, well electricity can only use 1 prong at a time. It takes the path of least resistance. You could have 50 prongs and it will only hit 1 at a time. The other prongs just sheild the air/fuel mixture from the spark.

Mustangs are easy to do plugs on, so there really is no need for a plat plug. Changing them every 15-20K miles is no big deal. That's why you should just stick with simply single-strap copper plugs.

Could not have said it better myself!

XXBULLETSXX · Jul 26, 2005

Huh, learn something new every day!
Though, I must say I was totally sold by those comercials that show the multi prong plugs. I knew that the spark will only go to one prong at a time but I thought is was a good thing that the spark seemed to cross open air reaching for that prong. Where as with the normal plugs the spark is totally covered except from the sides.
I can't believe I was totally suckered in by those damn comercials!

Thanks guys!

Ronald Jones · Jul 26, 2005

Mustang5L5 said:
Motorcraft AGSF-32C or Autolite 764 COPPER Plug.

Do not do platnium plugs. Platnium is not good for performance at all. The only benefit of plat plugs is extended time between plug changes. Copper is what you want for performance.

The stock plugs have a copper core just like any other standard plug out there. The platinum is on the tip on the center electrode (AWSF-32P) and some plugs have a small button of platinum welded to the ground electrode (AWSF-32PP)

Also the copper in the center electrode is encased in nickel. The platinum tips do not hinder performance one bit, it's there to keep the tips from wearing down.

96WhiteNight · Jul 26, 2005

I just use copper save the cash for better things

50,000 miles, which spark plugs?

lightblade

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