Doin spark plugs, need some opinions.

Its time to swap out the plugs in my 04 Tacoma 2.7. Im looking for some opinions on which plug to run. There seem to be some big cost differences with all the versions available these days. Anyone advise?

 

i would just suggest to sticking to either denso or ngk standard plugs. that, you'll know that they are the correct heat range and all.

 

Denso Iridiums. They will last 100,000+ miles.

 

I always run NGK R's cheap and seem to last a good while

 

Only run Denso or NGK or your rig will run like crap.

 

I bought NGK irridiums from Advanced Auto parts. Same price as platinum plugs. Irridium is better from what I have read.

 

Yup, Iridium is far superior to platinum or double platinum.
http://www.densoiridium.com/spconstruction.php

 

I put NGK Iridiums in my 2004 2.7 for only one reason. They'll last 100,000 miles. I do plan on pulling them every now and then to look at how they are burning but don't want to HAVE to pull them. Other than that. Copper is a far better conductor than Iridium or Platinum but it doesn't last as long. I'd run the standard copper if I was really worried about fuel mileage and performance but if you don't want to be "required" to pull plugs every 30,000 miles then I'd go Iridium. I put my Iridiums in 20,000 miles ago and haven't even thought about plugs since then. The way the truck runs didn't change a bit and the fuel mileage didn't change either.