Spark Plugs for 3100

[heavydtheogre]

Ok I know i did this on another thread, but for this one, i want to know, whats the best for the 3100.

98 GP SE 3100 - stock.

Now right now i have AC delco 41-940 platniums.

And since im changing the LIM, i might as well change the plugs - ive never had the rear ones out.

I want to put new plugs in so i dont have to change them, hopefully for the rest of the cars life.

Am I better going with Autolite XP606 iridiums
or NGK 5599 Laser Iridiums
or is it better to go with coppers??

And if i goto iridiums - is that better for fuel milage.

I dount want to put platinums back in!

 

[Explicit_Spade]

Factory Plugs.

 

[Slick2500]

Afaik you should be able to use any stock replacement plug in the 3100 they arent picky with plugs like the 3800 is. I would just get any platinum or iridium plug that works don't get coppers.

 

[dsmuts]

Al iridium are what I use

 

[heavydtheogre]

Ok ordered NGK laser Iridiums, and NGK wires - should be blue

 

[Drew Foes]

do these add any horse power? or any performance?

 

[dsmuts]

No spark plug or wire is going to add any hp or performance on our cars.

 

[heavydtheogre]

well depends on what ur plugs look like u have now

mine were platinums but worn badly - NGK TR55GP

and i have better low end now

 

[Vejita88]

yes, stick to iridiums, I made the mistake of going to copper, and suffered power loss. I didn't know at the time the significant difference, and I couldn't afford them.