plugs

spikeGT_99

New Member
May 3, 2004
184
0
0
Jackson, Ms
well im changing the plugs in my stang and i went to the store to buy some autolite coppers and they didnt have any so the guy sold me some autolite 764 double platinums. are they as good as copper plugs, cuz i know they'll last longer. i was taking the word of a lot of people on here about the copper plugs but the guy at advance auto sat there and argued with me for like 15 min about the copper vs. platinum plugs. i ended up buying the double platinums cuz i was too lazy to go anywhere else, i wasnt too worried cuz this is the only place ive ever heard copper reccomended over platinum, whats the difference supposed to be??? because im just confused now, i know platinum is a better conductor, but copper is supposed to give a hotter spark? can someone explain this to me?
 
with your mods I doubt you will see any difference between the two , copper plugs are a must in power adder cars though ... nitrous or supercharged cars dont like the platinums ...... you should be fine ......
 
spikeGT_99 said:
guy at advance auto sat there and argued with me for like 15 min about the copper vs. platinum plugs.


They like to do that a lot. I always get into debates about copper vs. platnium plugs with parts store guys. It's because of companies like Bosch that advertise their platnium and +4 plugs giving a HP boost. Realistically it's not true, but amazing what a little marketing can do. Just look at chrysler and their new HEMI.


Anyway, short of a material properties lecture, copper is a better conductor of electricity and will produce a hotter spark. Platnium is a harder material and will not wear as fast. Most new cars come with plat plugs because the average comsumer does not care about 1-2 HP as much as seeing "plug change at 100K miles". If you own a Mustang and plan on doing some performance mods, you should really be using copper plugs unless of course ou are running boost or nitrous. Then our plug choices will be a little different (still not plat though)