Texas_Ace

I have not had any problems with the 6 but i have also not pulled them to see what they look like yet either.

I am taking my experience from MR2's any applying it to the 4runner. In the MR2 if you use 2 steps colder the plugs get fouled VERY fast. Usually you get reduced performance within a few hundred miles.

I am running water/meth injection though so not sure how a 1 step colder would work without that. I plan to stick with 1 step colder plugs in my truck though unless these plugs look like they are too hot when i pull them out.

mt_goat

I doubt you'll have fouling with water/meth injection. I don't with IK22s and they are 2 steps cooler, just lots of wear.

mt_goat

I ordered up 6 NGK BKR6EK PB-11 to try. They are double platinum plugs (2 ground straps which are platinum tipped also), they are expensive at $10 each and a step hotter than I'd prefer but there just isn't a good choice for a 2 step cooler plug for the 5VZFE IMHO. Very frustrating but hopefully these will work out.

Texas_Ace

You run water injection right? you should be ok, if you were on plain gas and pullyed think i would stick to 2 steps cooler till it is proven ok on plain pump gas.

mt_goat

Yes, 50/50 water/meth Aquamist 2D system.

Texas_Ace

Old system but as long as it is working i doubt you will have any problems.

mt_goat

Yeah getting old, like me lol...funny you should say as long as its working, I've had 2 leaks this year. I guess I need to replace all of the lines.

J2F42C

Dale,

I thought you were looking into getting some Denso plugs from overseas? Did that never materialize?

BTW, where have you been hiding out? Somewhere that has AC hopefully. A friend in Tulsa says hell has nothing on the hot heat in OK at the moment.

mt_goat

Yeah I can't bring myself to buy plugs in some foreign currency and pay God knows what in shipping.

Yeah what a heat wave, but I just got back from Breckenridge CO and 2 trails had so much snow I couldn't get through to the top. Nice a cool up there (about 10,000 ft).

mt_goat

New plugs are ready to go in, I like that the tip (top) doesn't unscrew. Some have reported the tips unscrewing during use and causing problems (other types of plugs)

]

Texas_Ace

Those may have been the plugs i used last, i know i ran some plugs like that at some point. Worked fine for me but still didn't last all that long but i am real picky about my plugs.

josh.bunch

Just changed mine last weekend for the first time in over 130K and they didn't look that bad.






Or that good.

Texas_Ace

Actually they do look real bad, look at those gaps!

TheDurk

Well, they look pretty good for 130K! Seriously, those were toast a long time ago.

Texas_Ace

Yeah, for 130k i guess they could be worse although not sure how much worse.

Bet that truck drives like new after that change!

Nuthuts96

iTrader: (1)

do i ever need to do this asap... thanks for the prodding folks!

SierraMtns

So which ones should I use with a stock 02 3.4? NKG or Denso? I have a Napa and Toyota dealership right next to each other.

Texas_Ace

Doesn't really matter on a stock truck long as you change them out.

smokey0066

I usually buy ngks. Its so easy to change them out there really is no excuse. Unlike the rear bank of my Camry... grrr

mt_goat

OMG, those are toast.