sparkplugs

[riceandpho]

hi guys, i got 30k miles on my 07 4runner 4.0 sport
i wonder what plugs to use
im leaning torwards denso ,but dont know which one should get.
SK20HR11 is the long life iridium
IKH20 is the iridium
also has anyone heard of pulstar? and wonder if its worth the 25 bucks for the plug? DG-1 is the part number.
got all these listing on www.sparkplugs.com

 

[Will816]

30k miles and you're planning on replacing them? I'm sure they'll do just fine up to 100k. Spark plugs are so good these days that some cars (97-03 F-150) are almost impossible to replace them in without lowering the engine.

If you really want to replace them, just stick with moderate ones, I'll bet my next paycheck that big fancy plugs don't make any difference. A spark is a spark.

And something like plugs is a good way to pull some fancy marketing for you to go and pay more and then have a good placebo effect that tells you your engine is more powerful.

 

[Will816]

I had to go and research this after I typed up there ^, I'm pretty sure the spark plugs in your V6 are extended life plugs and should be fine unless your manual says to replace them.

And get Denso or Bosch

I looked at that Pulstar thing and they are claiming to make more power out of nothing. You only get energy by converting it from some other type of energy, and theirs seems to be coming out of magic, which is not real energy

 

[riceandpho]

i was on there website pulstar.com, and see that powerblock tv video at the bottom. makes me think if its really worth it to get and try. 25x6 is 150 damn.

 

[CJ3Flyr]

I had to go and research this after I typed up there ^, I'm pretty sure the spark plugs in your V6 are extended life plugs and should be fine unless your manual says to replace them.

And get Denso or Bosch

I looked at that Pulstar thing and they are claiming to make more power out of nothing. You only get energy by converting it from some other type of energy, and theirs seems to be coming out of magic, which is not real energy

I disagree and I agree

The OEM V6 plugs are not a long-life iridium/platinum design and do need replacement. Toyota says at 30k. The V8 uses long-life plugs as OEM.

I vote for long-life Denso or NGK.

:iagree: about the gimmick factor with the Pulsestar. In some old, points style ignition engine the Pulstars may help. On the T4R the ignition is hot and precisely controlled. The dyno runs on PowerBlock always quote full throttle specs. Slight improvemnets at WOT don't necessarily = gains in normal driving.

I don't think there's any benefit to spending the money on Pulsestars for a T4R. Take the $$$ savings and distribute it over the next few oil changes and use sythethic or change your gear lube to synthetic. You'll do better in the long run.


:cheers:

 

[4runnerfourplay]

I just installed the Denso Iridium's in my runner a couple days ago, have 29k miles on an 05 V-6. I used to have an accord 3.0 V-6 and a guy dyno tested the denso plugs before and after and gained 3 whp. I didnt put them in for the 3whp but because they (IMO) are the best plugs out there today.

 

[Conspearasea]

FWIW, I have the 2007 SR5 4wd,w/ 4.0 v6 w/ 38k miles.

I went to the dealer and had a list printed up of maintainence I needed to make sure was up to date and the plugs were one of the items.

I bought just the regular Densos listed in the manual (as they told me those were the only ones available for the engine) cost about 4 bucks each.

The plugs I pulled, while not bad, definitely were worth replacing considering the low cost of replacement. They showed some signs of wear and definitely it was a good idea to replace them.

On a side note, I did notice that my MPG dropped considerably at first while I suppose the ECU "relearned" its optimum running parameters. It dropped from like 20mpg city (per the computer) down to about 13mpg on the computer. It did, after some time and running come back up to 20mpg again.

I guess now that I see there are iridium options, in another 30k I will probably use those.

HTH


Quick side note : I never asked but I assume these plugs don't need to be indexed?? Hope not, as I didn't index them......

 

[CJ3Flyr]

Quick side note : I never asked but I assume these plugs don't need to be indexed?? Hope not, as I didn't index them......

They go straight in the top like a true hemi. (I'm not calling it a Hemi I am referencing the plug location within the combustion chamber.) IMHO indexing doesn't apply to this engine.

:cheers:

 

[dwallone]

NGK

I switched out my plugs at 31k yesterday in my '08 v6. 3 NGK and 3 DENSO were pulled of course.

I used 6 NGK 4904 Spark Plug ILFR6T11. They are the iridium plugs for the v6.

It took around 45 minutes and when you get to the driver side disconnect the harness from the plug boot before you undo the nut that holds everything in place, this will save you some time.

The Old plugs did show signs of wear, but neither the NGK nor the DENSO were in really bad shape, or worse off than the other.

I dont claim any less noise or any more power or any sort of nonsense from the new plugs, no decrease in the MPG according to the computer but I have yet to go through a tank of gas.

If i hold my breath and accelerate really smoothly then i can force myself to believe that my truck is running smother now with the iridium plugs...........

oh and PS. please don't use a bosch plug. It's the only plug i have ever pulled out of an import that has the element half missing or completely gone, after only a few thousand miles and not shooting nitrous or anything like that.

I have also heard that the +2 and +4 nonsense produces a muddled spark, as the spark jumps from electrode to electrode and does not produce one clean spark from the electrode to the element. Who knows though?

 

[EH007]

30k miles and you're planning on replacing them? I'm sure they'll do just fine up to 100k. Spark plugs are so good these days that some cars (97-03 F-150) are almost impossible to replace them in without lowering the engine.

.

The original plugs probably will last beyond 30K miles, but Toyota does recommended changing them at the 30K mark. Since plugs are so inexpensive and easy to change, I think it would be a good idea to follow Toyota's recommendations.

There are quite a few things that could go wrong with a modern engine if one or more spark plugs start to malfunction. It can cause a domino effect that can cause other problems that might not be so obvious to most shadetree mechanics.

 

[riceandpho]

so i would be going for that denso plug
SK20HR11 is the long life iridium 11.49
IKH20 is the iridium 11.99
so guys which one tho? the long life or the regular?

 

[snowjay]

so i would be going for that denso plug
SK20HR11 is the long life iridium 11.49
IKH20 is the iridium 11.99
so guys which one tho? the long life or the regular?

I vote neither. Just get the regular Denso's or NGK V-Powers that came in the v6 from the factory. Only the v8's used the iridium plugs.

 

[4runnerfourplay]

I got the regular ones, honestly I didnt even know there were long life ones. I wonder what the difference is.

 

[riceandpho]

both plugs at that price for 6 will be about 73 bucks, but its a small price to pay, ill just order the ikh20 before my 36000 mile oil change.

 

[snowjay]

I got the regular ones, honestly I didnt even know there were long life ones. I wonder what the difference is.

The long life I think might use both iridium and platinum.

 

[kimboy]

I change my plugs ever 30K with OEM plugs. Having said that, I've noticed that the price of plugs have gone up. I've since ordered 12 from Partznet to offset the future cost of these plugs. When used with a little anti-seize, and your choice of plug(s) you'll be fine.

If you're going to keep the 4runner for a while, you might want to save a few bucks and stock up on replacement wiper blades inserts, in cabin airfilters, air filters, and plugs.

I would also recommend moving to synthetic fluids for your front, center and rear diff. Synthetic gear lube will easily take you to your 120K mile tune up.

 

[spo0587]

I had my replaced at 120K, granted I have the V8 and it had the long life as OEM. Not much of a difference after they were changed, but at least now they won't seize to the engine block.

 

[NCSCOTT]

No one has mentioned here that the 30K mile plug change on the V-6 is "REQUIRED under the terms of the Emission Control Warranty" per the Scheduled Maintenance Guide. Note 2 on the 30k, 60k, 90k, & 120k maintenance intervals.

The Federal Emissions warranty for specific parts goes out as far as 80k miles or 96 months.

So for the first 2 changes just buy the standard Denso or NGK plug then at 90k go to whatever you perfer since there is no warranty at that point, unless you have the 100k extended.