which iridiums are we talking about here. They have the laser iridiums and iridiums IX.
Whats better? whats the difference?

i didn't know there was 2 kinds?

Get the Iridium IX's. They are running quite nicely.

whats the difference between the 2

I'm sorry, I couldn't help myself

You gap a plug by taking the prong at the end of the spark plug and slightly bending it further away from the igniter. Hence, there is a further amount of space for the spark to jump, and gives a much more complete combustion. I can never remember the correct terminology, but you measure the gap with a little round metal chip...I believe it's called a gap tool. I'm not sure.

alright, at 29xxx miles i just regapped my factory plugs to .032 from .042 with the dollar spark plug gap tool. It was kinda hard with the strut bar there but i managed to git er done without removing the bar. Depending on how much mileage i get off this tank of gas i might or might not get new plugs.

With that said did you achieve any better gas mileage?

i think im going to replace mine, i really dont like the way my car is accelerating with the regapped factory coppers.

It's mainly at idle where you will feel the difference in just vibration alone.

Those damn Iridiums are hella expensive! Anyone try the G-power ones?

This post was last modified: 06-12-2008 06:01 PM by 06ShadoWboX.

im still runnin the stock plugs. and i still dont know which ones to buy when i need to get more. i think i will go with copper ones but i still dont know.

i havent done it yet, ive only got just over 17k miles so far.
i just know about the gap.

i think im going up to autozone tomorow and getting some plugs, prob coppers.

im just in it for raising mpgs. screw 4.60 gallon gas

just did them

This whole gap thing and irridium or copper etc is confusing. Whats funny is that the Echo, bB, and prius...all the same 1.5 liter engine as the xB recommend the use of irridium plugs with a .044 gap! Why did Toyota decide .032 for the xB?? Answer me that.