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Old 05-02-2011, 10:31 AM   #55
BLAZINBLUEVITZ
 
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Quote:
Originally Posted by swidd View Post
For smooth gears, spray the top of the gear box, the linkage, with WD-40. Smooth never tasted so smooth!
done that this weekend for the second time BUT i wasn't refering to shifting when i said smooth through the gears....
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Old 05-02-2011, 01:03 PM   #56
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Yes, an iridium plug will "last 100k miles.
However, why change them at 100k? Is 100k a magical milestone?

Any plug wiil deteriorate over it's life. Granted, an iridium pluge will deteriorate much more slowly but, it's still not the same as it was when new.

So, if your car is just a ocasional grocery getter, leave them in for 100k if you like
However, if you want to maintain top performance, change them more often.
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Old 05-02-2011, 01:14 PM   #57
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Exactly! ^^^
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Old 05-03-2011, 01:22 AM   #58
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Do not rely on that old anti seize left on head threads to work for the new plugs,always with aluminum heads put on new antiseize......or the next time it very well will be a head change needed when you break off the plug trying to get it out.....been there done that.
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Old 05-03-2011, 08:26 PM   #59
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Anti seize really is not necessary since the plugs have a trivalent coating on the threads. If they seize it's because they were overtightened. Also here is a link for the newbs >> http://www.ngk-elearning.com/
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Old 05-03-2011, 11:06 PM   #60
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Remove / install plugs when engine has sat for awhile is one .
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Old 05-04-2011, 04:02 PM   #61
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Quote:
Originally Posted by auxmike View Post
Yeah, it DOES really make a difference! Worth doing...
i achieved same results!
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Old 05-04-2011, 04:54 PM   #62
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Quote:
Originally Posted by "G" View Post
OIL CHANGED EVERY 5K MILES Not long enough per toyota.
Eh? Here in Canada oil change interval is 8000kms... close enough to 5k miles...

On the echo i always left it to 10,000kms and used synthetics, no issues.

In 258,000kms on the echo I changed plugs twice, always worked lovely, and I used iridiums. New Yaris with only 32k on it, likely has OEM plugs in it, I may change them up soon just for the hell of it.
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Old 01-02-2012, 08:17 PM   #63
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Just ordered the:
Denso Iridium Long Life Plug 3324 SK16R11 .044"
(Original Equipment Manufacturer and/or Original Equipment Equivalent) $9.35/ea
from sparkplug.com

I have 90k on my originals....we'll see what difference there is when they get here and I get 'em installed.

I know my mileage is off....I'm at about 35/mpg when I used to be close to 40.


OK....they have been swapped out.
I put some anti-seize on 'em.....I always use anti-seize when I do plugs.....hate fishing out plug holes (helicoils or rethreading)...
Attached Images
File Type: jpg SparkPlugs4.jpg (9.0 KB, 204 views)
File Type: jpg SparkPlugs1.jpg (9.8 KB, 205 views)

Last edited by fj40dave; 01-08-2012 at 10:43 PM.
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Old 01-02-2019, 10:58 PM   #64
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Quote:
Originally Posted by auxmike View Post
Not true.
DENSO sells two types of iridium plugs;

IK16 is the "regular" Iridium plug you're writing of.

SK16R11 is the "long life" Iridium OEM replacement part they market that the dealer sold me.
Wrong answer. ik16 is the iridium "POWER" plug and the one you want.
The ik16tt is the standard iridium.
The sk16r11 is the iridium long life.







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Old 01-03-2019, 09:17 AM   #65
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Your 7 years late.
It's all in the timing,
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Old 01-05-2019, 01:09 AM   #66
"G"
 
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Nope, 7-year-old info needs to be updated. So when people search they are not reading outdated info.
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Old 03-14-2019, 03:10 AM   #67
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Quote:
Originally Posted by auxmike View Post
Car left the factory with NGK, Toyota dealers sell DENSO replacements. Car seems to run a LOT better now. I don't care what they claim, I ain't leaving my plugs in for 100K.
NOTES:
1)The factory plugs I removed are covered with what appears to be sticky cosmoline on the threads, like the stuff they rub down old military rifles with! That's what it smells and looks like.... It's NOT motor oil.
2)There appears to be a "pad" attached to the inside of the hook part of the plug across from the iridium center electrode. Never seen that on any other plug before.
3)The iridium is like a pin tip, hard,brittle and delicate.
$38 shipped Priority mail from Covina Toyota in Cali via Ebay....
The pics are from a Blackberry, so please excuse the quality.



My manual says to use 90919-01164 or Denso K16R-U11, can i use this iridium type SK16R11? will it make a difference?
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Old 03-14-2019, 11:03 AM   #68
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If wrong heat range, can get to looking like those nasty examples in photos above.
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Old 03-14-2019, 12:25 PM   #69
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I just go to the dealer. What they give you has to be right...no?
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Old 03-16-2019, 11:37 AM   #70
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Yes, incorrect heat range can make them look similar. These are the correct heat range, they just have a solid 100k on them. Yes, you can buy the standard oem plugs from the dealer, but they are overpriced re-badged denso anyway. Also, the dealer doesn't offer the top of the line model like the "POWER" plugs.
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Old 08-01-2019, 05:43 PM   #71
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Quote:
Originally Posted by "G" View Post
Nope, 7-year-old info needs to be updated. So when people search they are not reading outdated info.
Hit the nail on the head. I am about to change mine out tonight and started reading this many-years-old post from the beginning. Maybe late answer for the original conversation, but not a late reply for this thread at all. Keep it all in one thread, otherwise we'll have a thousand threads.
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Old 08-02-2019, 02:07 PM   #72
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Well, at 101,000 miles, I changed out my oem spark plugs. Pictures look better than actual. I usually get 46-49mpg this time of year, and I have only been getting 44.5 at best this year. We'll see if the sparkplugs will help. First plug had lots of resistance when I was taking it out, I sighed, thinking I ripped out head threads, but was pleasantly surprised when it came out clean. Turns out (pun intended) I had overdone the anti-seize a few years ago on the spark plugs when I tested compression at like 18k miles (I reused the oems at that point) and it just was too gummy after all these miles. I vacuumed out each hole with a vinyl tube and the house vacuum.
I did not go with the oem iridiums. They were over $9 a piece. I found these at Advanceautoparts.com.

https://shop.advanceautoparts.com/p/...6953/5531691-P

Their description online says they are "oem approved". Although they are rated for 30k miles of use as opposed to 100k, they are 1/4 of the price. Made in the USA with Japanese and domestic parts it says on the box. V-groove gimmick looks cool. The way I see it, changing these out 4 times will get me farther than the 100k, and I'm out the store door with 4 new ones for $8.40 with an online coupon! Plus if I get rid of this car before the next 100k miles, I'll be losing money on the iridiums. OEM on mine were Densos.

I feel nothing different. Starts and goes just like before. I did however do a resistance check on the new and old. 3 new spark plugs were just about 5,200 ohms, one of them was 4,820. I only was able to test one oem used one at 6,400 ohms, the others did not give a reading, I guess due to the carbon, I didn't bother trying too hard to clean the tips and get a reading. On each of the 4 oems, tips and ground straps were worn on one side only. Funny how the picture doesn't show that. I think only the good sides were facing the camera!
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