Bosch "Iridium" 4-prong spark plugs - Anybody use

TCSoff · July 11th, 2007, 01:17 AM

The iridium ones are fairly new I believe (I only recently saw a magazine ad for them) but I know from experience with previous beaters like my '83 Supra that the Bosch platinum 4-prong plug really makes an immediately noticeable difference over the standard Champion, Autolite, etc.

However, getting to the '05 + GT's... Has anybody installed Bosch's latest in their 4.6? I was thinking about it ... but if Ford is using those alleged 100k+ mile plugs at the factory, maybe it's a bad idea to mess with that? I only have 15k on my GT...

Thoughts? Or results?

TCSoff

stanglifemike · July 11th, 2007, 01:53 AM

I would stay away from those 4 prongs

1FastFox · July 11th, 2007, 09:19 AM

I never really understood the concept on those plug, cause if you think about it electricity always takes the past of least resistance, so its not going to jump to all four of those at once. Only thing I can think of is that when one prong wears out it goes to another one... I dont think I would put those in my car...

stanglifemike · July 11th, 2007, 07:27 PM

Exactly what FastFox said. It doesnt matter if you have 10 prongs, its only gonna go to 1.

dapack69 · July 11th, 2007, 07:59 PM

I work at AutoZone part-time and I still don't know crap.

I do know this though, stay away from the Bosch plugs.

crazytaz · July 11th, 2007, 09:19 PM

you shouldn't use bosch plugs in a ford car. bosch are crappy plugs. only uses motorcraft or autolite plugs.

July 11th, 2007, 01:17 AM	#1
TCSoff Newbie Join Date: Jul 2007 Posts: 5	Bosch "Iridium" 4-prong spark plugs - Anybody use The iridium ones are fairly new I believe (I only recently saw a magazine ad for them) but I know from experience with previous beaters like my '83 Supra that the Bosch platinum 4-prong plug really makes an immediately noticeable difference over the standard Champion, Autolite, etc. However, getting to the '05 + GT's... Has anybody installed Bosch's latest in their 4.6? I was thinking about it ... but if Ford is using those alleged 100k+ mile plugs at the factory, maybe it's a bad idea to mess with that? I only have 15k on my GT... Thoughts? Or results? TCSoff

July 11th, 2007, 01:53 AM	#2
stanglifemike MM Fanatic 06 GT & 98 GT Join Date: Dec 2006 Location: Carrollton, GA Posts: 3,084	I would stay away from those 4 prongs __________________ 98 GT: Accufab, Steeda, BBk, Mac, FlowMaster, Moser, Ford Racing, American Racing, Nitto, Eibach, SCT, FPS 06 GT: JLT, SCT, FRPP/Borla, Pypes, Steeda, BamaChips

July 11th, 2007, 07:27 PM	#4
stanglifemike MM Fanatic 06 GT & 98 GT Join Date: Dec 2006 Location: Carrollton, GA Posts: 3,084	Exactly what FastFox said. It doesnt matter if you have 10 prongs, its only gonna go to 1. __________________ 98 GT: Accufab, Steeda, BBk, Mac, FlowMaster, Moser, Ford Racing, American Racing, Nitto, Eibach, SCT, FPS 06 GT: JLT, SCT, FRPP/Borla, Pypes, Steeda, BamaChips

July 11th, 2007, 07:59 PM	#5
dapack69 Regular Join Date: Nov 2006 Location: Ft Walton Bch, FL Posts: 494	I work at AutoZone part-time and I still don't know crap. I do know this though, stay away from the Bosch plugs. __________________ Custom engine built from Super Six, Cam from Delk performance, Custom Novi 2000 in the works. My Car www.supersixmotorsports.com www.bc-automotive.com/

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July 11th, 2007, 09:19 AM	#3
1FastFox Hardcore Enthusiast Join Date: Mar 2007 Location: Indiana Posts: 1,769	I never really understood the concept on those plug, cause if you think about it electricity always takes the past of least resistance, so its not going to jump to all four of those at once. Only thing I can think of is that when one prong wears out it goes to another one... I dont think I would put those in my car...

July 11th, 2007, 09:19 PM	#6
crazytaz Regular Join Date: Jun 2007 Location: El Paso, Texas Posts: 57	you shouldn't use bosch plugs in a ford car. bosch are crappy plugs. only uses motorcraft or autolite plugs.

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