TRD Iridium Spark Plug

I used copper anti-seize with the last plug change I did. I don't think it's necessary. The important thing is not to over-coat the threads because you don't want the anti-seize to get squeezed out into your cylinder. I will likely not use it the next time.

 

Interesting! So the copper gives off a hotter spark, maybe that's why Toyota recommends them???

 

I went Iridium. I ave no desire to change my plugs more often than I need to.

 

I don't know that Toyota recommends them. I thought Platinum was what Toyota recommended. If you really want to use copper, go for it. I'm far too busy to change plugs every 20-30k. The other nice thing about iridium is that they are pre-gapped from the factory. Less to worry about when changing plugs.

 

They burn hot enough for the 4.0? Yeah, my local dealership strongly recommended standard copper plugs and stated that I could potentially have issues with iridium or platinum. He actually told me that with any other vehicle Toyota sells he would recommend iridium but with the Tacoma he said to only use the standard copper plug!!!!

 

Yep. Like I said before, the TRD supercharger kit comes with iridium plugs, but using them in n/a engines are just fine as well. I have had no problems with mine. MPG's are just as good as when the truck was new after break in.

 

@Revelations, you spark my interest (pun intended). I've got a 2014 Tacoma, 4x4 TRD Sport and have been giving thought to purchasing the TRD Supercharger (a mere $4,300). I tow an 18' trailer, about 2700 lbs loaded, and per the Toyota manual, one must use 4th when towing; makes sense. Yet, I would love to have more power than the 289HP I'm getting. Dealer here in San Francisco willing to install to maintain all warranties on the engine, plus I feel it wise to have a Toyota part, Toyota will warranty. I assume there isn't much of a MPG difference, but hows the increased HP?

 

Denso or NGK? And NGK standard or VTip????

 

I personally don't have a supercharger. However, the 2014 V6 only came with 236HP. The magnuson supercharger (Toyota discontinued selling the TRD branded, magnuson supercharger) is reported to increase BHP to 305 and 335lb-ft of torque. If you can still purchase a TRD supercharger for $4300 with fit kit (fit kit is required), then I would go for it. Last remaining TRD branded ones sold for a premium once Toyota discontinued them. Magnuson now sells them without the TRD logo, but for $6k. I believe CARB approval is pending on it.

These are what I installed in my tacoma.

$8 Denso (4704) IKH20TT Iridium TT Spark Plug, (Pack of 1)

http://www.amazon.com/Denso-IKH20TT...1&redirect=true&ref_=oh_aui_search_detailpage

Note that the TT designation is for Twin Tip. It has one center electrode and one grounding electrode. http://densott.com/

 

https://www.tacomaworld.com/threads/the-truth-about-spark-plugs.152726/

 

NGK says not to use anti-seize on any of their spark plugs -> https://www.ngksparkplugs.com/about-ngk/spark-plug-101/5-things-you-should-know-about-spark-plugs

"NGK spark plugs feature what is known as trivalent plating. This silver-or-chrome colored finish on the threads is designed to provide corrosion resistance against moisture and chemicals. The coating also acts as a release agent during spark plug removal. NGK spark plugs are installed at the factory dry, without the use of anti-seize. NGK tech support has received a number of tech calls from installers who have over-tightened spark plugs because of the use of anti-seize. Anti-seize compound can act as a lubricant altering torque values up to 20 percent, increasing the risk of spark plug thread breakage."

 

new to site.im comming uo to 60,000 miles i think ill go with the NGKs

 

How much are they?

I wouldn't over pay for iridium, but I would go iridium. THEY MAKE NO DIFFERENCE WHAT SO EVER TO THE TRUCK!! People make crap up with this. If you gap them correctly and instal correctly iridium lasts longer (3 times longer) than copper. THERE ARE NO PERFORMANCE DIFFERENCES WHAT SO EVER. I love how people take something so tiny and blow it up into an epic problem. The vast majority of cars use iridium plugs.

 

I replaced all mine with the standard (copper) Denso when I hit 30k miles. The 3 OEM stock NGK plugs gap was larger than the 3 Denso plugs when I pulled them out. I assume the electrode in the NGK had burned off more than the Denso's. I did not use any anti-seize.