Spark Plugs.

[Blown93SSEi]

Due for spark plugs now. Usually I normally get the Autolite Copper plugs, But I'm looking for ideas on what other brand and metal would be acceptable or more preferred over the Autolites.

[Jrs3800]

If this is for your 97 SSEi, Try a set of NGK TR55's... Or if you want Autolite, try the 605's these should be one range colder than stock..

I guess it depends on what you are looking for... Are you looking for more performance, or just a good stock replacement plug?

[willwren]

I second the NGK TR55 call. It's the only plug I've run on all 3 cars since they hit my driveway with the exception of one set of autolites.

[00Beast]

I have TR55's in my car and no complaints.

[mjtr21]

ok i was searching and came upon this thread about spark plug recommendations. i just seafoamed my intake (loved the smokeshow) and wanted to change out the plugs and was going to put in some ngk tr55's but i did a search on advance auto parts and seen there were 3 kinds. there were nickel, platinum, and iridium metals. which one do i get?

[00Beast]

Copper. TR55 is the full number for them, any letters after will be for platinum or iridium. These: http://shop.advanceautoparts.com/webapp ... Assigned=1

Also, this is an OLD thread. You would've been best off making a new thread and linking this one.

[ZLTFUL]

As an aside, use the iridium OR coppers DO NOT use the platinums as they WILL destroy the motor.

[willwren]

Platinums won't destroy the motor. They will destroy themselves in short order in a supercharged or turbo engine.

Never use Bosch Platinums in any GM 3800 engine. They are known to be a problem in waste-spark ignition systems like ours.

[wjcollier07]

Now I know most of us change our plugs often enough not to really worry about the designed limited lifespan of a copper plug...usually considering how low cost they are...however is there any benefit whatsoever to running iridium plugs over a copper for the short period of time that a lot of us do?

[LeSabre in Buffalo]

No. Iridium is a "set and forget" type of plug. I do lots of travel with little time for car work, so I got iridium plugs on the last tune-up. They won't be looked at until 30k miles have gone by. Then, they'll likely get re-installed for another 30k miles.

[00Beast]

Iridiums specifically say on the box now to not gap them too. I broke the tip of one off while attempting to gap it way back when, and I guess a lot of other people have too.

[PHATZ3442]

I habe 2004 pontiac bonneville sle v6 what the best spark plugs for me

[harofreak00]

Any Iridium plug