the only problem you might have in leaving the plugs in for that long is that there is a greater chance of them getting stuck when trying to change them.

 

use high temp antiseze. they sell them in little packets at auto zone for less the 3 bucks.

 

While maybe the worst problem, not the only one.
Worse mileage.
Harder starting.
Etc.
Time to change!

 

yeah, you guys need to change em.

buy em from me too in the classifieds

 

Hey guys,

I got 27,980 on mine and it's an 06. but as far as saying how old it is, ide say under 3 years. When you guys say, 3 years for example; are you going from say 06-09? or the month it was made in 06 to the month made in 09?

I wonder because mine was made in Aug 06, so I technically don't consider mine 3 years old yet until Aug 09. but I don't know how anyone else sees it?

On another note, I picked up some NGK iridium's the other day but am waiting on my gap gauge to fix them. (per my cheaper coin gapper they are all different) Which is strange as they say they should come .44 but uhh, nope. I know how to gap w/o touching the nipple so all is good.

 

You'll be fine waiting till 30.

 

i think you not suppose to gap them. but your not making any gains by spending that much money on plugs. Toyota plugs cost about 13 bucks for all 4. i think that's a value.

 

always check the gaps just in case
If I used OEM plugs I would change them yearly vs 3 years or so.......so iridium is in the box...getting ready for my second set shortly

 

Toyota recommends every 30K for standard plugs (oem) my car doesn't like running over 30K on its plugs. then again that poor car :-( soooo many miles on her.

 

You do NOT gap Iridium plugs!

 

still need to check them........
never ever put a plug in your car if the gap is off.........

 

you do if the gap isn't right. they are supposed to come pre-gapped from factory but all 4 of mine are different slightly.

You can make slight adjustments to the ground electrode as long as you don't touch the nipple.

 

Unless you:
1) Bought cheap-___ plugs
2) Dropped
You should never need to gap Ir plugs.

 

that's what i thought. in the Toyota Trecel they use twin ground electrodes, they are not to be tried to gap. but them plugs are pricey at the dealer.

 

Yeah, you guys tell me your process to gap these:



Answer: Don't.

 

I was referring to the single ground electrode plugs not those Bosch platinum ones.

 

I run Denso's and I still confirm the gap..you can choose not to...

 

oh and here is the directions on how to gap them on the Denso site...I guess they put them there just for the hell of it.....
http://www.densoiridium.com/installationguide.php

 

See point #1

 

hey.....49,000miles on my 05 xb