Would you use an injector cleaner fluid for the S2k?

If not, why not? Is it because they're not useful?

If "YES", which brand do you think is the best to use? And how many miles you do before using it?
Thanks

Also, how often do you reccomend to replace the spurk plugs? Like, ho wmany miles? I know they reccomend to replace plugs ever 100k miles, but if you dirve the car hard (redline) often, should the plugs be replaced more often?

 

NO NO and NO again. Don't do it. It will burn way to hot possibly damaging your engine, and they are terrible on your catalytic converter.

 

It honestly depends on what you use. Redline SI-1 gets rave reviews from people on bobistheoilguy.com and I've successfully used it myself on some older vehicles. If you're sure that you've got deposits on your injectors, give it a shot.

 

^+1.

STP, chevron, gumout, redline and amsoil. Lucas has pretty bad reviews than I thought.

On plugs, I usually change them out at 60k~70k. That's just me(its not that expensive). But you should be fine@maint schedule if ur car is N/A.

 

I use Amsoil P.i. and it's works great. http://www.hightechsyntheticoil.com/...orcleaner.html

 

Redline, at a rate of 1/2 bottle per tank, only need one bottle per year. Redline, Cheveron Techron, Amsoil and perhaps Regane use the proper chemicals that actually work, I wouldn't use any other brand. These injectors do foul and I believe anything you can do to keep them clean will help.

I changed my oem plugs at 55k and they were at the service limit for gap specs so it was a good time to get them out. I wouldn't wait until 100k, by 75k they will likey be in need of replacement.

 

Thanks to all who replied