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!