Spark plugs

I have two questions.

One I am curious what brand or type of spark plugs does everyone suggest using ?

And second I have been looking and searching the forum for a forum write up on replacing spark plugs? This is the first time I have changed spark plugs on this truck so I wanted to read over something and have something to refer to.

 

Google search: tacomaworld.com 2nd gen spark plug.

https://www.google.com/url?sa=t&sou...ygBMAA&usg=AFQjCNGn6N1ddya_TXkSn4L8rlvMmbB9aQ

https://www.google.com/url?sa=t&sou...ggaMAA&usg=AFQjCNEDjTOTm6DKp4Bco_639EERzRemHQ


https://www.google.com/url?sa=t&sou...CgCMAA&usg=AFQjCNFVYolEEwqb_GgkVqXKylxdvIV2JQ

Lots more but I'm too tired to link.

 

Denso.

Here's the write up:

https://www.tacomaworld.com/threads/how-to-spark-plug-change-1-gr-fe.30479/

 

Irridium plugs. No copper.

 

What makes you say that?

 

Use whatever your owner's manual calls for (Denso), less than $4 a piece from the dealer. Don't make it any more difficult than it is. Make sure to check the gaps before installing. They don't necessarily come 'pre-gapped' correctly when you buy them.

 

They last longer. Less pain in the butt for me as far as having to change them.

 

I used copper densos. Research I did was like 1 in 5 people were having issues with the iridium and switched them out.

 

I saw the same thing. I think it is best summarized as:

• Use copper
  
• Unless you drive a lot and are sick of changing plugs then try iridium
• If you try iridium you might have to swap back to copper anyway or it might work out great

 

Thank you everyone I really appreciate it!

 

I think I will just go with the denso I don't drive much and if they are more reliable then that's what I am going for. Can they only be found at a dealer ? Because the nearest dealership from me is 45 minutes . I do how so ever have a autzone and orriellys in my town .

 

I went with the denso, but looking back I think iridium would have been a good choice. It's not exactly a pain in the ass to change our plugs, but it isn't simple either, because of all the crap in the way.

I got my wife an ES 350 for her birthday in 2012 and it uses the iridium plugs. No need to change for 100,000 miles. They both have Toyota engines in them...

 

Actually ran E3 spark plugs for 30,000miles then changed for emision sin your service manual.But then came the supercharger now uridium from the dealer..

 

Many manufacturers were used conventional nickel-chrome (fat) electrode (so-called "copper"¹) plugs during EPA mandated emissions certification dyno runs--this provided a tiny bit of a buffer in consistent ignition timing and flame propagation as opposed to thin wire precious metal electrodes of platinum or iridium plugs. That they did this indicates to me some concern about passing EPA certification with fine wire plugs. The thing about their doing this is that now the engine has been emissions certified with the fat wire plugs and they had to be specified as the only suitable replacement to keep the Feds happy--and who cares, the customers will be paying to have them changed every 30k miles--the dealers are happy.

My '98 SL500 Mercedes was also certified with conventional nickel-chrome plugs--I changed over to iridium plugs at the first change and have never looked back. Our '09 Tacoma will be getting a set (Autolite #XP5325) as soon as I have 30k on the conventional plugs the dealer installed before I bought it...

---------------------------------------------------------------
¹ - There is no such thing as copper electrode spark plugs; copper is much too soft melts at too low a temperature, copper electrodes would not last 10 seconds under load. Copper is used as the core material in nearly all modern spark plugs, including platinum and iridium plugs, to assist in cooling.

More than you probably want to know about thin wire spark plugs...

 

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

 

Dunno what all the fuss about iridium plugs is in here, swapped out my old coppers for iridium last night and she starts and runs just fine.

 

I think a issue may be that some people swapping to iridium end up getting plugs with the wrong heat range and that would lead to problems. For instance I'm pretty sure you do not want to use the iridium plugs that are spec'd with the SC kit on a stock engine because they are a lower heat range than for a stock engine. I need to do more research on this but that's my best guess as to some folks having no problems with iridium while others have issues.

 

23k miles on irridium plugs and doing just fine.

 

Ohhhhhh i see what you are saying, thanks for filling me in.

 

you can always get the Denso's at Rockauto