An eye opening experience-changing plugs at 100k...
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Interesting to see some debate here!
Odd though, to see people opposing eachother. I sort of feel like car maintenance is like personal hygiene. You can definitely not do enough...and to a certain extent you can do too much. But really it all comes down to the individual.
You brush twice a day. You floss once a day. You see a dentist every 6 months.
Me, personally, I see a dentist annually. I don't get much buildup, and I am lucky like that. Perfect checkups at that. Once I went for 6 years without a cleaning. I have little buildup and no cavities or fillings or anything in my mouth.
Someone else in my family, unfortunately, with all the brushing and flossing there is too much buildup to keep up with. And every time at the dentist there is an issue of some sorts. They've upped it to 4 times a year to stay on top of it.
The amount of maintenance you need is really entirely up to you, your feelings on the matter, and the conditions you put your car through. The point of my coming up with a new plan is to cater to those who are among the averages. The extended intervals are probably just fine for those who drive extended range daily. But for me, I drive about 15-18k a year, and when I do I drive with enthusiasm. And I really feel like the factory intervals were simply not covering it!
Odd though, to see people opposing eachother. I sort of feel like car maintenance is like personal hygiene. You can definitely not do enough...and to a certain extent you can do too much. But really it all comes down to the individual.
You brush twice a day. You floss once a day. You see a dentist every 6 months.
Me, personally, I see a dentist annually. I don't get much buildup, and I am lucky like that. Perfect checkups at that. Once I went for 6 years without a cleaning. I have little buildup and no cavities or fillings or anything in my mouth.
Someone else in my family, unfortunately, with all the brushing and flossing there is too much buildup to keep up with. And every time at the dentist there is an issue of some sorts. They've upped it to 4 times a year to stay on top of it.
The amount of maintenance you need is really entirely up to you, your feelings on the matter, and the conditions you put your car through. The point of my coming up with a new plan is to cater to those who are among the averages. The extended intervals are probably just fine for those who drive extended range daily. But for me, I drive about 15-18k a year, and when I do I drive with enthusiasm. And I really feel like the factory intervals were simply not covering it!
i don't drive much at all. since i've got my TL in midjune2010, i've only put 5k on it just shy of 8 months. i plan on doing the plugs @ 50k, i'm at 40 now.thx for the write up heeltoe.
The amount of maintenance you need is really entirely up to you, your feelings on the matter, and the conditions you put your car through. The point of my coming up with a new plan is to cater to those who are among the averages. The extended intervals are probably just fine for those who drive extended range daily. But for me, I drive about 15-18k a year, and when I do I drive with enthusiasm. And I really feel like the factory intervals were simply not covering it!
I agree that the interval is a somewhat individual decision. I'm more than curious though why you feel it's necessary to repeatedly call everyone cheap that doesn't agree with you? Very annoying and makes you look bad imho.
I agree with you, dont waste your time with the "penny pinching" mentality on this site, I feel so many people have a negative attitude towards maintenance for their cars and love to knock people like us who can appreciate and feel maintenance does have some affect on performance and drivability, maybe caues their cheap?, either way its sad cause so many of them will spend money on light up acura emblems but wont invest the money to replace plugs a little early just to help refresh them and get new ones in. 

great write up by the way... I also feel maintenance is all about "preserving what you have" and keeping the car running in tip top shape...... very refreshing to see a positive attitude on this forum for a change when it comes to these things for your car sooner then the suggested intervals to keep the performance.
I salute you
I salute you

Well the findings I had on the drain plug were a little excessive and many would agree with that, changing it each oil change takes another 10 mins considering the drain plugs are inches away from each other.... I thought the thread was good info since the interval on the oil combined with those findings should be a concern for the already problematic trans we have. 
Sorry you didnt see value in my thread, I was genuinely trying to add a good thread to the forum other then " what intake should I buy, or what car should I buy next " type threads.... I am just very PRO maintenance for overly cautious protection.

Sorry you didnt see value in my thread, I was genuinely trying to add a good thread to the forum other then " what intake should I buy, or what car should I buy next " type threads.... I am just very PRO maintenance for overly cautious protection.
yeah thats what I was trying to get across as well, but I still dont get why some people say changing your plugs wont do anything, when we show them stuff like this....
We may not get a lot of power, but I think as you stated it will help the car run its best... which speaks volumes when you combine that with other needed items, as in this case, the air filter as well.

We may not get a lot of power, but I think as you stated it will help the car run its best... which speaks volumes when you combine that with other needed items, as in this case, the air filter as well.
In fact, if you'd be so inclined, and can find the time with your weekly oil/transmission fluid changes, maybe you could send me some new plugs for my car? Then I can show you pictures of how good my original ones look at 68k, and then later I can tell you how my car runs no better with new plugs.
Please...tell me again what you've shown anyone in this thread, other than the fact you're extremely annoying and seem to enjoy belittling people who'd rather not spend their money on things they don't need.
In fact, if you'd be so inclined, and can find the time with your weekly oil/transmission fluid changes, maybe you could send me some new plugs for my car? Then I can show you pictures of how good my original ones look at 68k, and then later I can tell you how my car runs no better with new plugs.
In fact, if you'd be so inclined, and can find the time with your weekly oil/transmission fluid changes, maybe you could send me some new plugs for my car? Then I can show you pictures of how good my original ones look at 68k, and then later I can tell you how my car runs no better with new plugs.
Do me a favor dont change anything on your car......
Last edited by Steven Bell; Jan 3, 2011 at 09:54 PM. Reason: Unnecessary Comment.
I have mine on order, its 9:38pm do you know where your fresh spark plugs are at?
Dude really, I am just a very blunt person, I speak or in this case type whats on my mind... sorry if you took offense, but then again if thats the case move to another country where there is no First Amendment Right.
Dude really, I am just a very blunt person, I speak or in this case type whats on my mind... sorry if you took offense, but then again if thats the case move to another country where there is no First Amendment Right.
Joined: Sep 2008
Posts: 78,249
Likes: 20,202
Dang...and I was convincing myself that I didn't need to change my plugs...I think I will end up doing this...and clean my k&n drop in...it's been a while.
J.
Also, Marcus...
What is the part number on these plugs?!?! Are they for the 3G TL also?!?!? If so, 9 bucks each is a great deal.
J.
J.
Also, Marcus...
What is the part number on these plugs?!?! Are they for the 3G TL also?!?!? If so, 9 bucks each is a great deal.
J.
Last edited by Steven Bell; Jan 3, 2011 at 09:52 PM.
They're $9.99 @ the local AdvanceAuto.
I agree that 100K is too long to go between changes but the fact that they operate for that long is appealing to most people. I wish that there was a copper plug for the 3.2 especially being FI.
, even NGK too (at least for the J32A2), and they even come in a honda box too (but you have to go to a different form of vehicle/motors though
)
I have mine on order, its 9:38pm do you know where your fresh spark plugs are at?
Dude really, I am just a very blunt person, I speak or in this case type whats on my mind... sorry if you took offense, but then again if thats the case move to another country where there is no First Amendment Right.
Dude really, I am just a very blunt person, I speak or in this case type whats on my mind... sorry if you took offense, but then again if thats the case move to another country where there is no First Amendment Right.

I'm actually running 3 steps colder......nothing in copper with a resistor. I've looked at everyone and can't come up with anything in a 14mm, 19mm reach, 5/8 socket, gasket seat, resistor, with a heat range of 8 (NGK).
Last edited by KN_TL; Jan 3, 2011 at 10:00 PM.
I'm gapped at .024
The plugs I am running now are iridium. I say I prefer copper because it is a better conductor than iridium and I plan on checking/changing the plugs often so I don't need the benefits of iridium.
Unfortunately, the industry is obviously will support the masses and most love the 100K between changes so it looks like copper isn't as available. And with racing plugs I haven't found one with a resistor that meets our specs.
The plugs I am running now are iridium. I say I prefer copper because it is a better conductor than iridium and I plan on checking/changing the plugs often so I don't need the benefits of iridium.
Unfortunately, the industry is obviously will support the masses and most love the 100K between changes so it looks like copper isn't as available. And with racing plugs I haven't found one with a resistor that meets our specs.
Your a lucky man!! My teeth would look like a set of wheels that haven't been cleaned in 6 years

Well, I was going to wait and change my plugs when I did the TB change later this week. But after reading this thread, curiosity got the better of me and I went ahead and pulled my old plugs after 106,570 miles. My engine was running great prior to pulling the plugs, getting 31 mpg highway on winter gas.
Here's a picture of the old plugs. They look pretty damn good for 106,570 miles!

The new plugs are in and I can't tell a bit of difference. I seriously doubt my gas mileage will improve over what it was at already. I have a couple of 150 mile road trips this weekend, so we'll see.
Based on my experience, I see absolutely no reason for early change out of the NKG iridiums.
K&N:
I've been running a K&N on my TL for over 100K miles and I like it. My throttle body is as clean now as the day I bought the car. I saw an increase in 1-2 mpg after switching to the K&N and continue to enjoy mileage above OEM EPA estimates, even at 100K+ miles. Does that PROVE than a K&N improves gas mileage? Absolutely not.
With a K&N, it's really a personal decision. Try if you want and see if you like it, but don't let anyone tell you that it's been proven to:
1. Damage engines
2. Improve gas mileage
3. Increase horsepower
There is no empirical data anywhere in the world that proves any of the above.
Here's a picture of the old plugs. They look pretty damn good for 106,570 miles!

The new plugs are in and I can't tell a bit of difference. I seriously doubt my gas mileage will improve over what it was at already. I have a couple of 150 mile road trips this weekend, so we'll see.
Based on my experience, I see absolutely no reason for early change out of the NKG iridiums.
K&N:
I've been running a K&N on my TL for over 100K miles and I like it. My throttle body is as clean now as the day I bought the car. I saw an increase in 1-2 mpg after switching to the K&N and continue to enjoy mileage above OEM EPA estimates, even at 100K+ miles. Does that PROVE than a K&N improves gas mileage? Absolutely not.
With a K&N, it's really a personal decision. Try if you want and see if you like it, but don't let anyone tell you that it's been proven to:
1. Damage engines
2. Improve gas mileage
3. Increase horsepower
There is no empirical data anywhere in the world that proves any of the above.
Those look great nfnsquared. I'm sure they'd have gone another 20k with no adverse performance. It still won't stop the hysteria on the early change out, nor will it keep people from running out and blowing 100 bucks, but to each his own I guess.
Funny, I've posted the government study that shows that decreasing inlet restriction can not increase mpg and that increasing restriction (plugged filter) will not lower mpg. It's 100% impossible for a K&N to increase mpg in a fuel injected car. Going by this theory, giving it more throttle will increase mpg too since you're greatly reducing inlet restricion.
People will imagine whatever they want to justify a purchase. Case closed on the imaginary mpg increase, it does not exist, but it's disturbing that people can imagine things like that.
A K&N will keep small birds, sticks, and boulders out of your engine. It will keep it alive for a while. I'm sure 100,000 is no problem. But it's not going to be at it's best.
I HAVE to run a K&N on the turbo car because there's nothing else that has the airflow I require. Over the past 17 years I've seen compressor wheel abrasion from less than clean air entering the turbo. While the intercooler plumbing and throttle body are super clean, the extra dirt shows up as cylinder wear and it shows up in used oil analysis as silicone. This is repeatable and the high silicone in oil after K&N installation is consistent in all but the cleanest (wettest) climates. Where I come from, dirt in the oil is never a good thing. But hey, if you get that 0hp and imaginary 2-3mpg from it, it must be worth it.
Someone tell Acura they're wasting money on the 3 stage factory filtration.
People will imagine whatever they want to justify a purchase. Case closed on the imaginary mpg increase, it does not exist, but it's disturbing that people can imagine things like that. A K&N will keep small birds, sticks, and boulders out of your engine. It will keep it alive for a while. I'm sure 100,000 is no problem. But it's not going to be at it's best.
I HAVE to run a K&N on the turbo car because there's nothing else that has the airflow I require. Over the past 17 years I've seen compressor wheel abrasion from less than clean air entering the turbo. While the intercooler plumbing and throttle body are super clean, the extra dirt shows up as cylinder wear and it shows up in used oil analysis as silicone. This is repeatable and the high silicone in oil after K&N installation is consistent in all but the cleanest (wettest) climates. Where I come from, dirt in the oil is never a good thing. But hey, if you get that 0hp and imaginary 2-3mpg from it, it must be worth it.
Someone tell Acura they're wasting money on the 3 stage factory filtration.
$100? I run $2 copper plugs lol. No issues as long as they're changed around 40,000 miles.
Joined: Sep 2008
Posts: 78,249
Likes: 20,202
Hmmm...now I'm thinkin...I normally get those discount coupons...maybe I should wait!
Thanks for the info fellas...
and although I wouldn't question IHC because he knows much...I personally run the K&N...I have not seen an increase in MPG...it sounds nice when I punch it (and no intake res) and is easy to clean...1 time cost etc..
That was why I went for it.
Thanks for the info fellas...
and although I wouldn't question IHC because he knows much...I personally run the K&N...I have not seen an increase in MPG...it sounds nice when I punch it (and no intake res) and is easy to clean...1 time cost etc..
That was why I went for it.
Hmmm...now I'm thinkin...I normally get those discount coupons...maybe I should wait!
Thanks for the info fellas...
and although I wouldn't question IHC because he knows much...I personally run the K&N...I have not seen an increase in MPG...it sounds nice when I punch it (and no intake res) and is easy to clean...1 time cost etc..
That was why I went for it.
Thanks for the info fellas...
and although I wouldn't question IHC because he knows much...I personally run the K&N...I have not seen an increase in MPG...it sounds nice when I punch it (and no intake res) and is easy to clean...1 time cost etc..
That was why I went for it.
Welcome back guys. It's like you never left.
If you want to use a K&N Filter and change your plugs every 10k, have at it. If you never want to change anything, be my guest.
Looks like most here will not even have their TL's @ 200k so who really cares?
Yep. I've never tested the theory on a TL but on my other car non resistor plugs caused "weird" things in the electronic systems. It was one of those things I heard would happen but I had to see for myself.
Joined: Sep 2008
Posts: 78,249
Likes: 20,202
I don't see how anyone could say you don't base your information on knowledge rather than opinion.
I appreciate the feedback, trust me. I considered taking it out...but I'm hoping that by being diligent with cleaning and reoiling it, I will still be preserving the life of the engine.
PS...what does one DO when banned from a website one visits every day? lol...ignore that, totally rhetorical.
I appreciate the feedback, trust me. I considered taking it out...but I'm hoping that by being diligent with cleaning and reoiling it, I will still be preserving the life of the engine.
PS...what does one DO when banned from a website one visits every day? lol...ignore that, totally rhetorical.
I don't see how anyone could say you don't base your information on knowledge rather than opinion.
I appreciate the feedback, trust me. I considered taking it out...but I'm hoping that by being diligent with cleaning and reoiling it, I will still be preserving the life of the engine.
PS...what does one DO when banned from a website one visits every day? lol...ignore that, totally rhetorical.
I appreciate the feedback, trust me. I considered taking it out...but I'm hoping that by being diligent with cleaning and reoiling it, I will still be preserving the life of the engine.
PS...what does one DO when banned from a website one visits every day? lol...ignore that, totally rhetorical.
Joined: Sep 2008
Posts: 78,249
Likes: 20,202
Well, to be honest...if that's the case...
a) that is awesome because you'll spend more time doing something you love.
b) all of us just got punished because you were banned and we'll be losing a HUGE vault of automotive information.
But, as they say...and I mean this, we have to do EVERYTHING in moderation...food, sex, drinking...AZ...black ops...tinkering...As I get older I'm learning how to better balance it all.
J.
a) that is awesome because you'll spend more time doing something you love.
b) all of us just got punished because you were banned and we'll be losing a HUGE vault of automotive information.
But, as they say...and I mean this, we have to do EVERYTHING in moderation...food, sex, drinking...AZ...black ops...tinkering...As I get older I'm learning how to better balance it all.
J.
Well, to be honest...if that's the case...
a) that is awesome because you'll spend more time doing something you love.
b) all of us just got punished because you were banned and we'll be losing a HUGE vault of automotive information.
But, as they say...and I mean this, we have to do EVERYTHING in moderation...food, sex, drinking...AZ...black ops...tinkering...As I get older I'm learning how to better balance it all.
J.
a) that is awesome because you'll spend more time doing something you love.
b) all of us just got punished because you were banned and we'll be losing a HUGE vault of automotive information.
But, as they say...and I mean this, we have to do EVERYTHING in moderation...food, sex, drinking...AZ...black ops...tinkering...As I get older I'm learning how to better balance it all.
J.
For me this is entertainment and some education. I enjoy the various points of view. I think most of the second and third purchasers of the TL will only keep them for a few years. At any rate saying something two or three times should be enough. They get it or don't.
Now, one more time, balance in all things.
Well, I was going to wait and change my plugs when I did the TB change later this week. But after reading this thread, curiosity got the better of me and I went ahead and pulled my old plugs after 106,570 miles. My engine was running great prior to pulling the plugs, getting 31 mpg highway on winter gas.
Here's a picture of the old plugs. They look pretty damn good for 106,570 miles!

The new plugs are in and I can't tell a bit of difference. I seriously doubt my gas mileage will improve over what it was at already. I have a couple of 150 mile road trips this weekend, so we'll see.
Based on my experience, I see absolutely no reason for early change out of the NKG iridiums.
K&N:
I've been running a K&N on my TL for over 100K miles and I like it. My throttle body is as clean now as the day I bought the car. I saw an increase in 1-2 mpg after switching to the K&N and continue to enjoy mileage above OEM EPA estimates, even at 100K+ miles. Does that PROVE than a K&N improves gas mileage? Absolutely not.
With a K&N, it's really a personal decision. Try if you want and see if you like it, but don't let anyone tell you that it's been proven to:
1. Damage engines
2. Improve gas mileage
3. Increase horsepower
There is no empirical data anywhere in the world that proves any of the above.
Here's a picture of the old plugs. They look pretty damn good for 106,570 miles!

The new plugs are in and I can't tell a bit of difference. I seriously doubt my gas mileage will improve over what it was at already. I have a couple of 150 mile road trips this weekend, so we'll see.
Based on my experience, I see absolutely no reason for early change out of the NKG iridiums.
K&N:
I've been running a K&N on my TL for over 100K miles and I like it. My throttle body is as clean now as the day I bought the car. I saw an increase in 1-2 mpg after switching to the K&N and continue to enjoy mileage above OEM EPA estimates, even at 100K+ miles. Does that PROVE than a K&N improves gas mileage? Absolutely not.
With a K&N, it's really a personal decision. Try if you want and see if you like it, but don't let anyone tell you that it's been proven to:
1. Damage engines
2. Improve gas mileage
3. Increase horsepower
There is no empirical data anywhere in the world that proves any of the above.
and it CAN eventually burn the sensor up, i have seen it before on a toyota tacoma (which normally never have issues with them)(but something like a nissan though, i would be very hesitant too though, they have had many issues with them going out [and you are looking at something like $500 because it is a "whole" housing type, compared to say the toyota one, which just screws into the side of the intake pipe
Funny, I've posted the government study that shows that decreasing inlet restriction can not increase mpg and that increasing restriction (plugged filter) will not lower mpg. It's 100% impossible for a K&N to increase mpg in a fuel injected car. Going by this theory, giving it more throttle will increase mpg too since you're greatly reducing inlet restricion.
People will imagine whatever they want to justify a purchase. Case closed on the imaginary mpg increase, it does not exist, but it's disturbing that people can imagine things like that.
A K&N will keep small birds, sticks, and boulders out of your engine. It will keep it alive for a while. I'm sure 100,000 is no problem. But it's not going to be at it's best.
I HAVE to run a K&N on the turbo car because there's nothing else that has the airflow I require. Over the past 17 years I've seen compressor wheel abrasion from less than clean air entering the turbo. While the intercooler plumbing and throttle body are super clean, the extra dirt shows up as cylinder wear and it shows up in used oil analysis as silicone. This is repeatable and the high silicone in oil after K&N installation is consistent in all but the cleanest (wettest) climates. Where I come from, dirt in the oil is never a good thing. But hey, if you get that 0hp and imaginary 2-3mpg from it, it must be worth it.
Someone tell Acura they're wasting money on the 3 stage factory filtration.
People will imagine whatever they want to justify a purchase. Case closed on the imaginary mpg increase, it does not exist, but it's disturbing that people can imagine things like that. A K&N will keep small birds, sticks, and boulders out of your engine. It will keep it alive for a while. I'm sure 100,000 is no problem. But it's not going to be at it's best.
I HAVE to run a K&N on the turbo car because there's nothing else that has the airflow I require. Over the past 17 years I've seen compressor wheel abrasion from less than clean air entering the turbo. While the intercooler plumbing and throttle body are super clean, the extra dirt shows up as cylinder wear and it shows up in used oil analysis as silicone. This is repeatable and the high silicone in oil after K&N installation is consistent in all but the cleanest (wettest) climates. Where I come from, dirt in the oil is never a good thing. But hey, if you get that 0hp and imaginary 2-3mpg from it, it must be worth it.
Someone tell Acura they're wasting money on the 3 stage factory filtration.
but what happens when the motor has to overcome and additional restictins, which is going to cause addtional to be use; such as plugged sir filtert that will not even let the car idle
You mean with oil? Yeah, that will happen if one over oils the filter. It doesn't take much oil and I'd guess that 50% of K&N users probably put too much oil on the filter. You need to be careful. It's much easier now that the oil is in an aerosol can.
more so on mass air flow sensored cars does it have a more dramatic effect, with coating the sensor over time (it takes a couple of cleanings to really get it dirty)
and it CAN eventually burn the sensor up, i have seen it before on a toyota tacoma (which normally never have issues with them)(but something like a nissan though, i would be very hesitant too though, they have had many issues with them going out [and you are looking at something like $500 because it is a "whole" housing type, compared to say the toyota one, which just screws into the side of the intake pipe
theoretically it will not increase or decrease mileage cause the ECU will m maintain steiometic though all rpm range
but what happens when the motor has to overcome and additional restictins, which is going to cause addtional to be use; such as plugged sir filtert that will not even let the car idle
and it CAN eventually burn the sensor up, i have seen it before on a toyota tacoma (which normally never have issues with them)(but something like a nissan though, i would be very hesitant too though, they have had many issues with them going out [and you are looking at something like $500 because it is a "whole" housing type, compared to say the toyota one, which just screws into the side of the intake pipe
theoretically it will not increase or decrease mileage cause the ECU will m maintain steiometic though all rpm range
but what happens when the motor has to overcome and additional restictins, which is going to cause addtional to be use; such as plugged sir filtert that will not even let the car idle
if you read the owner manual it says if operated in severe service- do the 105 service at 60- that would include spark plugs,, to say the least~
short trips- commute traffic- driving on Earth... all put the car in severe section of the maitenance,,no kidding read the book!
short trips- commute traffic- driving on Earth... all put the car in severe section of the maitenance,,no kidding read the book!
Well, when I "read the book", it doesn't say that at all. I've attached a copy of a page from "the book". It says the spark plug/timing belt interval is reduced to 60K miles only if regularly driven in temps over 110F or below -20F. This might apply if you drive year round in Death Valley or in far northern Canada. The average Joe driving in North America won't even come close to meeting those conditions There is absolutely nothing said about short trips or "commute traffic".
As you can see, it's not in fine print....

As you can see, it's not in fine print....

Well, to be honest...if that's the case...
a) that is awesome because you'll spend more time doing something you love.
b) all of us just got punished because you were banned and we'll be losing a HUGE vault of automotive information.
But, as they say...and I mean this, we have to do EVERYTHING in moderation...food, sex, drinking...AZ...black ops...tinkering...As I get older I'm learning how to better balance it all.
J.
a) that is awesome because you'll spend more time doing something you love.
b) all of us just got punished because you were banned and we'll be losing a HUGE vault of automotive information.
But, as they say...and I mean this, we have to do EVERYTHING in moderation...food, sex, drinking...AZ...black ops...tinkering...As I get older I'm learning how to better balance it all.
J.
Turbonut.... I'm not sure if I clarified earlier but when I posted that changing the plugs early resulted in a difference I was only taking about cold idle. No difference in performance other than the first 30 seconds. I know that's a big chunk of info to leave out.





