Bosch Platinum +4 Spark Plugs

[nemo12]

IT'S TIME TO CHANGE SPARK PLUGS, SO I PURCHASED A SET OF BOSCH +4'S.
READING THE FACTORY BOOK I COME TO FIND OUT FORD USED PLATINUM
ENHANCED (AWSF-32E) CENTER ELECTRODE ON CYLINDERS 5,6,7,8 AND
PLATINUM ENHANCED AWSF-32EG) GROUND (SIDE) ENHANCED ELECTRODES ON 1,2,3,4.
THEY GIVE PART NUMBER OF AWSF-32EE THIS PLUG HAS PLATINUM ENHANCEMENT ON BOTH ELECTRODE'S GROUND AND CENTER. THE ONLY PLUG
(+4) BOSCH LISTS FOR THE COBRA 1996-1999 IS PART # 4458 . IS THERE ANY EXPERIENCE WITH THE BOSCH PLUS 4'S AS A WORKING REPLACEMENT OR ARE THE BOSCH PLATNUM'S ENHANCED ON THE GROUND AS WELL AS THE CENTER.

THANKS, NEMO12

[Black Snake]

Platinum plugs are not for performance. They are for lazy people who don't change their plugs until 100,000 miles. Stay with copper plugs. They are cheaper and work better. Try Autolite or NGK.

[White98SVT]

Originally posted by Black Snake
Platinum plugs are not for performance. They are for lazy people who don't change their plugs until 100,000 miles. Stay with copper plugs. They are cheaper and work better. Try Autolite or NGK.

Amen.....Autolite 764's with a .054 gap is what I just switched to. I did have the Bosch Platinums for about uh........a week:D

[Black98Cobra]

Not that I do not agree with what you guys are saying because that makes perferct sence. I was just wondering where you got this information from.
Thank you.:bounce:

[tcrews]

It's the type material....copper conducts better than platinum. Platinum has a longer life cycle and are used for those that want to change their plugs every 100,000 miles. Copper conducts better and you get a better spark but you should change your plugs about every 10,000 miles. But...copper is way cheaper too so it's not that big a deal :)

All the split-fire, +4, etc...stuff is just marketing hype anyway.....

[Black98Cobra]

This is the first forum that I have ever heard someone say that. I am a mechanical engineer so I can calculate the heat transfer ratio and the counduction/convetnion for each and by far you are right. I guess this shows that the "bigger is better" mentality is not aways right. I run synthectic oil and change it every 4k miles. Every other oil change I will change the spark plugs so I will not forget and to keep them at top performance. Anyway, its good to see that people know what they are talking about on this forum, unlike other ones. ;)

[GeoSnake]

I stop by True Blue Performance a lot. The only plugs I see going into cars there are Autolites! At less than $14 a set you can't go wrong.