What do you all think?????
Thread Starter
On The Tree
Joined: Jun 2006
Posts: 195
Likes: 0
From: Texas
What do you all think????? hey guys i am about to change my spark plugs and i was wondering which one of these three would work better. any comments or suggestions are welcomed. 
denso iridium
http://www.densoproducts.com/more_info.asp?pid=9781
ac delco iridium
http://www.acdelco.com/parts/sparkplugs/iridium.htm
ngk iridium IX
http://www.ngksparkplugs.com/produc...1420&country=US
denso iridium
http://www.densoproducts.com/more_info.asp?pid=9781
ac delco iridium
http://www.acdelco.com/parts/sparkplugs/iridium.htm
ngk iridium IX
http://www.ngksparkplugs.com/produc...1420&country=US
Last edited by graysilv; Jul 10, 2006 at 07:16 PM.
TECH Enthusiast
Joined: May 2006
Posts: 644
Likes: 0
From: south jersey
personally i dont think they would be much different all being irridium if there the same heat range etc. i think you would see more a difference going from a different type of material or desing then brand.. soposedly iridiums biggest advantage-they stay clean longer.
Personally I think that you should tell us a bit more about your truck. I would suggest the NGK T-line of plugs. Maybe a TR-5 or 55 or 6. Depending on what you are doing.
NGK TR-55's gapped at .055. They are about $17 a set while the Iridiums are about $60 a set. I switched from regular 55's to iridiums and noticed no difference in anything.
