Plugs

[allheat]

WHAT ARE THE BEST PLUGS TO USE ON 3.4 V6

NGK OR BOSCH

[battistoni21]

i dont have the v6, but the NGK iridiums worked well on my 2.4...... i heard that the bosch aren't worth the money......

[Alero2k4]

I would go with NGK too...

[-Alero-]

anything that says OEM on thier computers. (autozone, advanced auto, etc etc)

[jabartram]

I use Denso Iridiums and they work VERY well, but expensive.

[Cliff8928]

Bosch plugs typically don't work well with a waste-spark ignition system. You'd be better off with something else. I usually just use the stock ACDelco plugs.

[Spilner521]

i also use denso iridiums but on my 2.4... very happy with them.

[allheat]

so denso or ngk the way to go thanks

[FormulaNERD]

oem

[RedAlero01]

The Stock AC Iridium plugs used on (I believe) '01 and up 3.4's are actually made by NGK. The NGK stamp is right on the side of the plug.

[alero440]

I have NGK in my 3400. They seem to be fine, then again I don't keep a car long enough to ever have to change them after I buy it.

[Satsuriku]

never touch anything bosch, its all crap!! i remember having a bosch alternator and spark plugs in my old car and they both crapped out within months!! you pay cheap, you get cheap!

[NoSweat83]

ngk.

[King Asoka]

I ran NGK's before, had no problem, except for hard starts from time to time. now im running ACDelco Platniums, seem to do the trick. start up seems easier.

[jackal2000]

Originally posted by King Asoka@May 25 2006, 06:29 PM
now im running ACDelco Platniums, seem to do the trick. start up seems easier.
Quoted post

ditto, but i think i have the platinum 2's. i cant remember.

[alero_ecotec]

Bosch = misfire out the a$$

[alerochick242]

NGK Iridium plugs - I love them!! My car starts quicker (dosen't crank as long to start). Of course, I don't know if that is due to my plugs or wires - replaced them both at the same time