How Long do NGK Iridium Spark Plugs Last? - A 100k Mile Review

In this video we review how long do NGK Iridium Spark Plugs last and what they look like after 100,000 miles. If you are curious if these plugs can last a long time or long service interval this video shows exactly what kind of wear the spark plugs will have after a lot of miles and use.

[sully]

had mine in for 213k miles before i changed, no misfires just decided it was time

[coltongriggs]

Had the ngk laser iridium plugs oem in my acura cl type s 6 speed with 120k miles when I changed them. Put the same ones in. Felt no difference so I'd assume they were still good. The plugs to my knowledge would probably have lasted the life of the car. Not the exact same plugs but close. All ngk plugs are awesome. Run the ngk tr55s in my ls1 trans am, and the tr6 when I wanna run nitrous. The fact these are in my truck stock makes me happy.

[HungryH]

I bought a 2008 Hyundai Elantra when it was brand new. I put 205, 000 miles on it and decided to replace the NGK iridium spark plugs. The car was still running fine and upon removal the plugs still appeared in good shape. I am sticking with NGK iridium spark plugs.

[charlieryan]

I have to do my plugs on my Jeep soon just turned 93K .Thanks for another smart tip

[dmontrose]

Thanks for tip on no anti seize! I've always used it. Getting ready to change uppers this weekend on my 2nd Dodge an 08.

[DanielGarcia-zzeg]

I can vouch for him don't put anything on those spark plugs. Just pull them out and put in new ones ( of course don't forget to gap ) They say spark plugs can last a hundred thousand miles, in the manual book it recommends to keep up with performance chang every 30, 000 miles . I've been changing them about every 30 to 40 thousand miles and I do feel the difference in performance, I guess that's how I'm keeping my 22 mpg . It's up to you, you don't have to change it that soon.

[rtxrt]

Reminds of the good old days where you had the split fire and GT+4 plugs 🤣..

[Sclassmercedes]

This guy is actually smart, I work for a major Diesel engine company, anti seez is good to keep thread from seeding but will throw torque out of spec . I seen people here break head bolt because of anti seez being used on critical parts with critical torque spec ....

[carlito]

I just replace the four spark plug on my 2006 Toyota Corolla with 138, 000 miles on it with the Toyota recommended NGK Iridium spark plug and found out that the originally installed are also NGK Iridium. checking the condition of the old one, it looks like in pristine condition still. must have built to last as the life of the car itself. Great product! no wonder it is the one recommended by Toyota.

[rowsdower]

Thanks for the video. I have a Bosch. I'll have to check mine. I'm at 92k on them but car working fine

[DAhonda]

The NGK Iridium ix plugs are only rated for
50, 000-60, 000 miles. THE LASER IRIDIUMS plugs are different and THOSE PLUGS ARE RATED FOR 100, 000 miles.

[CUnit]

Those plugs look fantastic for 100k! My truck is a 2013 has the older copper plugs which have a 30k change interval and also have that shiny costing on the threads. I changed them at 30k and they squealed like crazy while I was removing them. They also had a small amount of aluminum powder on them. I'm assuming that's because I'm in New England with the humidity in the summer and salt on the roads in the winter. I ended up putting a very small dab of nickle antiseize on the threads. But I've seen the videos with guys slathering it all over the threads of the plugs which isn't necessary at all. Can't wait to see the procharger installed!

[christophergruenwald]

I’ve never used anti seize on plugs and I’ve never had a seize. They always spin out by hand after you break them loose.

[linamar]

Great video, I have a 2014 ram 1500 3.6 v6 8 speed automatic with for the anti seize advice .

[MrT-nhdi]

NGK are one of the best or the best Sparkplugs to have for your engine.

[taylorsons]

I have the ngk v power and I'm at 150k and still running good

[fipc]

So did you put back old plugs or replaced with new ones? I just took out plugs from my Nissan Rogue with 125K (original owner) and they are in the same condition as the ones you show in the video. The gaps is matching the spec (0.044). I have NGK Iridium Laser rated for 100K and 0.044 gap. I'm thinking of putting them back and keep driving till 200K and re-inspecting then.

[shiroken]

i pulled 4 out of my accord after 143k miles and that's about what they looked like

[someguy]

These are all I buy. I rarely keep a car even close to 100K miles, so if I use these I am good until I sell.

[_wardavewoodworks]

Dude, , get an old school wire feeler gauge, much more accurate than the slide gauges. Just saying. Keep up the vids! G