Changes mine at 60,000. NOT a tough job on this car.
Don't over torque and be careful what anti-seize you use. No graphite containing stuff.

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I was careful installing them and not to over tighten. I use the same anti seize on every car/bike/vehicle I've ever owned. Permatex 80078.

70K was still pushing the limits on these plugs. I will likely back it up another 10K and go with the 60K interval as you do.

 

Another reason I use NGK and not Denso. But you're right, change them often, easy enough. So far these plugs still look good.

I use Permatex Copper on plugs and oxy sensors.

I use Harbor Freight torque 3/8"-drive wrench to 13 lb/ft. Should have them on sale for about $10 now.

 

I'll look at the HF wrench. I have an inch pound wrench that I could do the math with I guess.

I've always been a firm believer in OEM plugs and plug brands and I never deviate from that.

 

TOYOTA, claims these plugs go 100K before needing replacement. I've called complete BULLCHT on this for years and still do to this day. And based on these photos, nobody should allow spark plugs in a Camry to pass the 70K mark like I did on my first camry. I had a 2009 and went 100K and most of the electrode was actually GONE on one or two of the plugs.

DONT GO 100K on these cars. Toyota is insane.

I have changed my plugs around 100K miles but they always looked great. I am thinking I can easily go 120K miles. Your plugs looked great but if it gives you a peace of mind then good for you for changing them.

 

I think your plugs look fine and don't need to be changed. Did you notice any fuel mileage issues?

The ones on my 08 Rav and 06 Corolla are good for 192,000 km's (120,000 miles) and I changed them at around 170,000 km's and they still looked real good. Iridium plugs last a long, long time and are moons ahead of the regular copper electrode plugs.
I haven't checked to see what the interval is for my 2017 Camry but I expect them to be good for the same as my older vehicles. A friend of mine said he went 250,000 km's with his original plugs with no issues. Fuel injected engines , if taken care of , should burn clean for a long time and are very easy on spark plugs.

 

They were most likely OK. But after seeing what happened at 100K on a 2009 model I had, I wasn't going to get them go past the 70K mark this time. And it's cheap enough to change them. $40 is nothing.

No millage issues. I think It averages 30mpg. Will see if it helps with that at all with new plugs but most likely wont see any changes. I will change these out at 130,000.

 

those plugs did not need to be changed...they are 100k plugs. thanks for sharing..the 2.5 is a great motor and all ur plugs are firing evenly so thats a good sign.

 

Needed or not is certainly up for debate. However I don't believe in 100K spark plugs.

It's simply a way to save dealer's money on maintenance.

 

NGK is also OEM, but they use it much less these days ($$$). Some V6 engines come with Denso in one bank and NGK in the other.

 

You CAN play Toyota's lifetime game on ATF and antifreeze also. That's your choice.


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No way. I'm going to buy the tools and do the transmission fluid change WAY Before 100K happens.

Antifreeze drain and replace will come probably this summer for the 2014 I have. Its real simple process for the Afreeze.

ATF will cost me in tools, but after twice doing the job, I've paid for the transmission tools. Vs going to dealers.

 

do as u want to..or justify anyway u see fit..those plugs run 100k all day long and urs were fine. call denso and tell them they are clueless. oh btw nobody said one word about fluids here...oh wait,yes one person did.:facepalm:

 

Oh,I will. I don't run spark plugs to 100K.

 

i have no doubt people can do their own maintenance..once again..irrelevancy

 

Anyway. I'm not here to argue and wont continue to respond to those posts.

I like to share what I'm seeing when I do work on a car so that everyone can make their own decision with their car and provide suggestions and dialog.

 

Clearly preferences vary. Either way whatever works for you.

Toyota's U-series transmissions aren't the most reliable, especially when compared to their own earlier Borg-Warner designed A-series. The '18 Camry 8-speeds are already having shift problems out of the factory. So I'd vote for early fluid and felt filter changes (unless you have '18 and can't get to the filter. Some would put inline filter on there.). And use ATF like Valvoline Maxlife or Supertech Dexron VI or Supertech Low Viscosity Multi-vehicle ATF.

I don't use Denso plugs. NGK for me.

 

My philosophy on sparkplugs is the mfg knows best and they use a certain brand and rating for a reason. Usually its because the engineers say this provides best mpg or performance for normal users.

Since im normal i have no need to change the factory setting. I simply have no interest in experiments.

Plus like i said, the pix of plugs from a new car is simply interesting to see.

 

Your 2009 likely had plug issues because it was consuming oil, which was a common problem for 2AZFE cars that consistently ran XW20 oils, especially conventional 5W20. I also had an 09 Camry and my plugs were fine at around 100K, which was an early change.

There is absolutely nothing wrong with those plugs. They would likely go past the 120K with no noticeable effects, just like they regularly do.

Also the NGK and Denso plugs are indistinguishable in performance or longevity. Pretty much every Toyota engine in that last decade exclusively used Denso. I personally use Denso Iridium Long Life or Iridium TT in all Toyotas I service.

 

I had the 2009 model since it had about 40K on it. Sold it around 130K. I never had any indication it was burning oil. Never had to add any between oil changes. So if it was happening, it wasn't noticeable on the dipstick.

 

not all 2.4's experienced oil burning as well as not all had the head bolts strip out of the block. i know people who have well over 200k and never has issues while others had lots of problems with less than 150k.

 

And they may not have taken as well care of their car as they would have you believe.

When I look at used cars, I check things like the filter BOX and the cabin filter to see how really maintained it was.
GF looked at an HHR at a Camry dealer. Cabin filter was FILTHY! she was told, that's not something we normally look at.
she bought the car and had to replace a wheel bearing a week later. I just said, told you so.

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head bolts stripping out has nothing to do with maintenance
https://www.google.com/search?q=2az...enUS712US712&oq=2azfe+&aqs=chrome.1.69i57j0l5.7395j0j7&sourceid=chrome&ie=UTF-8

and neither does that wheel bearing in the hhr. also who tells their gf..i told u so? so she bought a hhr at a "camry" dealer? had no idea they had dealerships strictly for camry's..thanks ill check into that

 

You knew what I meant.
It must be that Lexus "superiority" in a Camry site. Oops, Toyota.
LMAO.

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This is a "necro-thread", years since the last activity.

But I didn't see any mention of how spark plug life can be drastically affected by heat load, due to hard use as in sustained freeway climbing, or due to fuel system issues (especially those that lead to even very light pinging).

Engine knock, however slight, causes a breakdown of the "boundary layer" of air/fuel/exhaust fumes that clings to every surface inside of the combustion space. The high-velocity air disturbances associated with knock/pinging wipe away this boundary layer of near-zero velocity gasses on surfaces such as the piston and the spark plug tip, causing sudden increases in surface temperatures. An over-heated spark plug electrode can more quickly be eaten away by spark activity, and can even result in the electrodes getting blasted/melted away into some very strange shapes.
So pulling the plugs, especially on any used-car purchase (where the history of operating conditions and repair are unknown), might be a good idea, and early replacement of plugs can sometimes help deal with any associated issues.
Plugs that look great can be re-installed.

Fresher plugs have more consistent, smaller gaps, which caps the voltage that the coil actually delivers, helping coils to last longer.
And removing plugs at more frequent intervals also helps prevent corrosion/sticking problems at the threads.