MaliciousClout
New member
Have we all come to an agreement on the best one?!?!
I'm looking to change mine SOON, like real soon!
I'm looking to change mine SOON, like real soon!
The Best Spark Plug
- Thread starter MaliciousClout
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crackiswack
New member
it would also be helpful to know if you have a v6 or v8
Whitebeauty
New member
BlackWorksInc
New member
NGK or Denso are the preferred brands by Toyota.
Did you notice a big difference between iridium and the regular copper OEMs?
I did the NGK OEM replacements on my last change and would probably like the longer service interval.
T4RUSAF
New member
^This.... but I had to go one step colder since I'm S/C'd
Whitebeauty
New member
With the gapping yes.....
Atlanta_man
New member
my new NGK iridiums arrived yesterday
hope they are not dangerous, they are glowing a light blue in the dark
gotta be good for more power and efficiency
hope they are not dangerous, they are glowing a light blue in the dark
gotta be good for more power and efficiency
Makes no difference if you have a V6 or V8.
Use the OEM plug for your vehicle. For Toyota that's either Denso or NGK.
They both make excellent plugs. Other companies like Champion, Autolite and even AC/Delco make plugs for this vehicle. But OEM plugs work the BEST. AC/Delco plugs work best on GM vehicles. Toyota outsourced the design of the plugs to Denso and NGK. They know how to make the correct plug for Toyota (and many other Asian vehicles).
There are 3 basic types of OEM plugs...Regular (copper), Platinum and Iridium. All 3 plugs perform EXACTLY THE SAME WAY. There is ZERO difference in performance or gas mileage among the 3 types of plugs. The ONLY difference is that Platinum and Iridium plugs last much longer. Platinum plugs will last about 60k miles while Iridium plugs can last over 100k miles. Regular plugs last about 40k miles.
Mechanics all over country have reported a drastic increase in stripped heads when trying to remove a spark plug that's welded itself to the heads after sitting in there for 100k miles. You won't have to change the plugs that often with Iridium plugs...but you may have major problems when you do.
Aquabear
New member
I'm installing Denso Iridium SK20HR11 today. The plugs in the truck are at about 40k, but are not OEM. My 4R has 73k now. Go Denso or NGK Iridiums either one is great. I usually do better than OEM in parts but follow a timeline for maintenance based on my usage and/or Yota reccommendation. IE: I have iridium plugs but do change them at 30/40k NOT 100k; and use synthetic oil and change at 3k to 5k not 10k. I have applied this to all my vehicles and it works for me.
Then that's a major waste of money. As I said..Iridium plugs do NOT perform any different then the regular copper plugs. They just last longer. If you use Iridium plugs and do the work yourself..then after 40k miles...remove the iridium plugs and just inspect them...then just put them back in. This will prevent the plugs from seizing after 100k miles.
CookieRoe
Senior Member
He is correct, however the V6 calls for "regular" spark plugs (that is what it was designed for) and the V8 calls for the Iridium plugs.
crackiswack
New member
Have you used iridium plugs for 100k in the 4runner v6? There are varying reports I've found through searching that they don't last any longer than the copper plugs in the v6 for some reason, and that is why toyota spec'd copper plugs
Aquabear
New member
Whoa man:flamewar:, barking is not necessary and check your god complex dude. Need to bark go to anger management, yoga or hit some trails and take your anger out there. I differ with you but in my experience it works for me and it's not a waste of money especially if you drive your vehicle harder than whats in the book in black and white. Drive your vehicle harder than you need a shorter maintenance time frame. The few bucks for a spark plugs is miniscule knowing that maintenance is good and complete.
Man is gettin HOT IN HERE!!!!!!!!!!:vader:
FYI I drive like a racer my other car is an AUDI A5 and performance is key for me. Harder driving is more maintenance.
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Show me the scientific study that shows that. The reason Iridium plugs last so much longer is Iridium is an extremely durable material and doesn't deteriorate nearly as fast.
I suggest you take a class in physics.....You'd have to be driving your vehicle in LOW gear at very high rpms in order for there to be a difference in copper and Iridium plugs. You're experience does NOT mean it's true. Maybe if several thousand people had the same experience. NGK engineers would be extremely surprised if their Iridium plugs only lasted 50k miles no matter how hard you drove it. Sorry...NOT buying it.
BCfish
New member
I think what he's trying to say is like it says in the manual even if have a V8 with Iridium plugs that you should shorten your intervals of servicing when using in harsh enviros..We do that with our vehicles at work we can get 10000k out of an oil change but change it at 5000k since we drive them in harsh conditions...I feel the same way about my 4R I change the oil around 6000k even though it synthetic just cause I know I drive harder than the average driver...I feel the same way bout my plugs as well I have the copper in there and I took them out the other day and barley 20000k and they need to be replaced on payday...I tow and wheel this thing I don't beat on it but I also don't baby it....
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emelianenkov
New member
I'm at 38k miles and I have hard startups sometimes. Like the car will turn over, start, bog down, and then be normal again. Is this a sign that I need new plugs? I don't know if they've been changed before
03L4RUNNER
New member
I've been using E3 plugs for the past 45k and no problems what so ever
