Right now i think i am using platinums . I've seen rapidfires and iridiums as well and not sure what i should go with. At this time i am experiencing a p0300 and thinking about changing the plugs. what are the best for.a 2000 vin w blazer?

 

Delco or ngk plugs

 

ACDelco spark plugs are what should be used.

 

I am currently using ACDelco plugs. I just didnt know if there was any difference in platinum vs iridium vs rapidfire.

 

So many opinions-Too many swear by brand preferance.I have never seen a failure from using a quality plug! Used in the past:Autolite,Bosch,AC, among others-no difference in my experience! I think just using qualiity fuel and top quality wires eliminates spark issues! Not too fond of Champions except in the stovebolt sixes,where they seem to excell however!

 

With anything electrical on a vehicle it's best to stay with the brand that the factory tested and proved with their system. In the case of the Blazer that would be AC/Delco or NGK (both have been installed at the factory) but I would go with AC/Delco either the double platinum or iridium, depending on your pocketbook.

 

It's long been said that blazers seem to have preferences for electrical components.
AC Delco all the way. Try a search of plugs etc & see how many posts there are including from the admin here Kyle (swartllk) & other moderators.
Platinum vs iridium vs rapidfire ehhh use what you like, research them for why they're "special" etc & I'm sure the cost will go up.
Personally I have a next to new set of platinums for our 2nd gen blazers I am willing to sell. $18 a plug in Canada or $85 for 6 shipped to me from the states. Easy choice IMO lol.

<edit> rriddle lol... see what I mean about the moderators & our blazers?!?!

 

Moderator? Ahem.

 

So Sorry & my apologies Mr. Grand Poomba ADMINISTRATOR rriddle

lol

 

im run thos e3 plugs but i hear they dont run so good sometimes it depends on the blazer
my aunt had the same one as mine 98 4dr ls with e3 plugs and hers ran like crap but mine runs good