spark plugs
#1
Suzuka Master
Thread Starter
spark plugs
Getting to 80K miles on my 2001, I am thinking of changing the plugs. car runs fine, but given the age and a lot of city driving, I am thinking its a good time to change. Found stock plus on amazon, should be $75 shipped (vs $120+ tax from a dealer).
http://www.amazon.com/NGK-PZFR6E-11-.../dp/B000GXBGQS
http://www.amazon.com/NGK-PZFR6E-11-.../dp/B000GXBGQS
#2
Whats up with RDX owners?
iTrader: (9)
Thats the price I found as well. I used to be able to get them for $55 but prices have gone up
#4
Whats up with RDX owners?
iTrader: (9)
You raise a good point. I was going off the part number in the Amazon link. According to NGK, the Type S uses the Iridiums (IZFR6K-11). Although the TL-S lists three different types of plugs while the CL-S list only the Iridiums, even though they are the same motor.
The plugs in the OP are the Double Platinums.
#6
Suzuka Master
Thread Starter
This is the part number for 2001 CLS, PZFR6E-11, exactly whats on Amazon. What is the confusion here? If you go to acuraoemparts.com, they also show this part number. I believe its in our manual also.
#7
Suzuka Master
Thread Starter
hmn, actually acuraoemparts.com says one thing, and manual says another. Mnual actually calls for PZFR6F-11.
What is the difference between F and E?
http://www.amazon.com/NGK-PZFR6F-11-.../dp/B000A8MYY2
What is the difference between F and E?
http://www.amazon.com/NGK-PZFR6F-11-.../dp/B000A8MYY2
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#9
hmn, actually acuraoemparts.com says one thing, and manual says another. Mnual actually calls for PZFR6F-11.
What is the difference between F and E?
http://www.amazon.com/NGK-PZFR6F-11-.../dp/B000A8MYY2
What is the difference between F and E?
http://www.amazon.com/NGK-PZFR6F-11-.../dp/B000A8MYY2
Item Weight: 1.92 Ounces
Height: 20 millimeters
Length: 8.4 centimeters
Width: 25 millimeters
E is Sizing and Specifications
Item Weight: 2.08 Ounces
Height: 20 millimeters
Length: 8.1 centimeters
Width: 25 millimeters
so the length and weight is different. I say just get the iridiums I changed mine to those about 1k miles ago.
#10
Lead Footed
FYI . . I've used this site to find out various details for all my cars. I'm actually going to use the NGK IX Iridium 6441 ZFR6FIX-11 based on consistent dyno results, but don't necessarily apply to our engines, but what the hey.
3.2 CL/TL
http://www.sparkplugs.com/results_ap...1&AAIA=1382778
3.2 CL/TL Type S
http://www.sparkplugs.com/results_ap...1&AAIA=1382789
Check out the 411 section for all sorts of spark plug, lighting and O2 Sensor info tidbits.
http://www.sparkplugs.com/sparkplug411.asp
Ruf
3.2 CL/TL
http://www.sparkplugs.com/results_ap...1&AAIA=1382778
3.2 CL/TL Type S
http://www.sparkplugs.com/results_ap...1&AAIA=1382789
Check out the 411 section for all sorts of spark plug, lighting and O2 Sensor info tidbits.
http://www.sparkplugs.com/sparkplug411.asp
Ruf
#12
Suzuka Master
Thread Starter
So which ones are OEMs?
I am happy with my old plugs, so want to replace with the same thing.
Looks like manual is wrong, PZFR6F-11 seems to be incorrect. Even NKG website says that PZFR6E-11 should be used for 2001 CLS. Also acuraoemparts.com lists PZFR6E-11
Can someone confirm that PZFR6E-11 is the official OEM replacement part?
I am happy with my old plugs, so want to replace with the same thing.
Looks like manual is wrong, PZFR6F-11 seems to be incorrect. Even NKG website says that PZFR6E-11 should be used for 2001 CLS. Also acuraoemparts.com lists PZFR6E-11
Can someone confirm that PZFR6E-11 is the official OEM replacement part?
#13
Back to a MT!
I was just at the NGKsparkplugs.com official site and it says the part number is: ZFR5FIX-11
A NGK.com distributor website lists: IZFR6K-11
Advance Auto Parts lists: ZFR5FIX-11
Any thoughts on why they are different?
I'm liking the ZFR5FIX-11 plugs because they are $6.99 at Advance. They are gapped the same.
A NGK.com distributor website lists: IZFR6K-11
Advance Auto Parts lists: ZFR5FIX-11
Any thoughts on why they are different?
I'm liking the ZFR5FIX-11 plugs because they are $6.99 at Advance. They are gapped the same.
#14
Suzuka Master
Thread Starter
I was just at the NGKsparkplugs.com official site and it says the part number is: ZFR5FIX-11
A NGK.com distributor website lists: IZFR6K-11
Advance Auto Parts lists: ZFR5FIX-11
Any thoughts on why they are different?
I'm liking the ZFR5FIX-11 plugs because they are $6.99 at Advance. They are gapped the same.
A NGK.com distributor website lists: IZFR6K-11
Advance Auto Parts lists: ZFR5FIX-11
Any thoughts on why they are different?
I'm liking the ZFR5FIX-11 plugs because they are $6.99 at Advance. They are gapped the same.
#15
Suzuka Master
iTrader: (10)
According to NGK's website, the 01-02 CLS takes lazer Platnium (PZFR6E-11). they can be upgraded to lazer iridium (IZFR6F11).
But the NGK site states that the 03 CLS only takes lazer iridium but has a different part number than the lazer iridiums for the 01-02 CLS (IZFR6K11).
according to acura, all the 01-03 CLS use lazer platnium.
I will be contacting NGK to find out the differences in these part numbers for the lazer iridiums. This information is good for people who plan to change their plugs again near 210k. For the plugs to last that long, you have to use at least lazer platnium if not lazer iridium.
But the NGK site states that the 03 CLS only takes lazer iridium but has a different part number than the lazer iridiums for the 01-02 CLS (IZFR6K11).
according to acura, all the 01-03 CLS use lazer platnium.
I will be contacting NGK to find out the differences in these part numbers for the lazer iridiums. This information is good for people who plan to change their plugs again near 210k. For the plugs to last that long, you have to use at least lazer platnium if not lazer iridium.
according to NGK, "The only difference is that the laser iridium plug used in the 2003
models (IZFR6K11) has a trapezoid cut ground electrode which helps improve ignitability. This plug could also be used in the 2001 models as well."
and while NGK says the 03 plugs are better than the plugs used in 01-02, "The improvement on the ground electrode would not be very noticeable if at all. I’m sure the design was made for a reduction in emissions or fuel economy but we are talking a very small percent improvement. They are virtually identical."
kinda sounds like when acura switched from 5W-30/10W-30 to 5W-20 in the J32A2
models (IZFR6K11) has a trapezoid cut ground electrode which helps improve ignitability. This plug could also be used in the 2001 models as well."
and while NGK says the 03 plugs are better than the plugs used in 01-02, "The improvement on the ground electrode would not be very noticeable if at all. I’m sure the design was made for a reduction in emissions or fuel economy but we are talking a very small percent improvement. They are virtually identical."
kinda sounds like when acura switched from 5W-30/10W-30 to 5W-20 in the J32A2
#16
Suzuka Master
Thread Starter
yeah, its PZFR6E-11, every acura OEM parts online gives me this number. damn manual is wrong, it says I need PZFR6F-11. this is a source for confusion.
#17
Back to a MT!
I thought the CL-Ps have the Platinum plugs and the CL-Ss have Iridium? The part numbers I listed above were for Iridium for the 2003 CLS but if you search the 2001 CLS the 6 appears in the part number in lieu of the 5... I emailed NGK directly to ask them about this. I will post their response when/if I hear back from them.
Last edited by silvervtec96; 04-28-2010 at 06:25 AM.
#19
Suzuka Master
Thread Starter
just FYI, found PZFR6E-11 on rockauto.com for $65 shipped (50% less than from dealer), this is a great place to order stuff, I've order tons of stuff, always good service
#21
Lead Footed
I'm not sure that everyone read all the data contained within the SparkPlugs.com site, but the term "performance" can mean more than one thing.
For example:
1) performance in terms longer plug life
2) performance in terms of longer plug life and better spark/power production
3) performance purely from a spark/power production (typically these are non-resistor plugs for maximum power gains used for track applications)
Metals used in plugs
http://www.sparkplugs.com/glossaryImage.asp?imgID=2
Iridium vs Standard Plugs
http://www.sparkplugs.com/glossaryImage.asp?imgID=1
NGK Dyno Results
http://www.sparkplugs.com/sparkplug4...Results&mfid=0
Dyno comparison of higher end plugs
http://www.sparkplugs.com/sparkplug4...Results&mfid=0
Now one needs to understand what the level/balance of performance are you wanting and willing to pay for? Note, the plug that best fits your needs isn't necessarily the most expensive. In other words, you don't need to spend more than $45 - ($7.00 a plug) - to get a plug that delivers both longlife and more power.
Ruf
For example:
1) performance in terms longer plug life
2) performance in terms of longer plug life and better spark/power production
3) performance purely from a spark/power production (typically these are non-resistor plugs for maximum power gains used for track applications)
Metals used in plugs
http://www.sparkplugs.com/glossaryImage.asp?imgID=2
Iridium vs Standard Plugs
http://www.sparkplugs.com/glossaryImage.asp?imgID=1
NGK Dyno Results
http://www.sparkplugs.com/sparkplug4...Results&mfid=0
Dyno comparison of higher end plugs
http://www.sparkplugs.com/sparkplug4...Results&mfid=0
Now one needs to understand what the level/balance of performance are you wanting and willing to pay for? Note, the plug that best fits your needs isn't necessarily the most expensive. In other words, you don't need to spend more than $45 - ($7.00 a plug) - to get a plug that delivers both longlife and more power.
Ruf
#22
Suzuka Master
Thread Starter
IMHO, all this is marketing. stock plugs are perfectly find for average day to day driving, I am not going to experiment based on marketing claims ...
#23
Lead Footed
Ruf
#24
03 ABP tls
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ive switched to the iridium NGKs in my 99 tl and now in my 03 TL-S and with both there was noticeable difference. granted, anytime an old pluhg gets replaced there will be a diff. but i was also basing it on reports by other tl owners
oh, and the fact they are only $7 at advanced auto, making it cheaper then the stock ones. and better lasting. actually, with a little coupon work, i got mine for $5 and some change. so i aint complaining
but you do what you like man
oh, and the fact they are only $7 at advanced auto, making it cheaper then the stock ones. and better lasting. actually, with a little coupon work, i got mine for $5 and some change. so i aint complaining
but you do what you like man
#26
Suzuka Master
Thread Starter
#28
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say what you like fellas, but after driving my car for 2 years, i can tell when it starts up or idles diff. if you cant, well you cant. anyway, just my opinion.
and you are correct, they are regular iridiums ix not laser ones.
and you are correct, they are regular iridiums ix not laser ones.
#29
Missing my
That's why I stated standard plugs are fine for the less demanding drivers. The more demanding drivers . . ie into performance modding or just wanting a better plug, they'll need a plug that meets that demand. That's why there are dynos included (not marketing claims) to back up the benefits . . . and yes, Iridium, Platinum, etc are all marketing traps for most drivers, but if folks take the time to read and understand the data (science) so they can separate marketing from facts. Those facts are that Iridium based plugs will last longer than Platinum, and Platinum longer than traditional plugs. It is also fact that there are advantages to various designs . . again, I didn't pull stuff off of some manufacturers site, but included links that provide research data to better inform you. Sorry I bothered you by trying to help you find a better plugs and save money on top of it.
Ruf
Ruf
#30
Lead Footed
#31
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I have the Iridium IX's and they've been great for a few years, but I plan to change em out with another set soon just because my car sits so much
#33
i just put laser iridiums in my 02 CL-S and the new plugs made a noticable difference in my car. car idles smoother and gas milage is up a little bit.
#34
I just had my plugs changed on my 2001 CL-S last week with NGK Laser Platinum PZFR6F11 spark plugs. Went with the owners manual part #. Are these ok cause I see different part numbers?
#35
I called Acura and they say the correct spark plug is PZFR6E-11. I just installed the PZFR6F-11 plugs last week cause that was the NGK # in the manual. Will I be fine with the 6F-11?
ACURA and NGK state PZFR6E-11
Owners Manual states PSFR6F-11
ACURA and NGK state PZFR6E-11
Owners Manual states PSFR6F-11
#37
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I'm about to install my second replacement set of spark plugs.
Found for my 2003 Type S engine, NGK part numbers (same 6 heat range for both):
Automatic trans
PZFR6E-11 (laser platinum)
Manual trans
IZFR6K-11 (laser iridium)
The above from my manual, calling my Acura dealer and confirming with the Acura parts web-site on-line.
Found for my 2003 Type S engine, NGK part numbers (same 6 heat range for both):
Automatic trans
PZFR6E-11 (laser platinum)
Manual trans
IZFR6K-11 (laser iridium)
The above from my manual, calling my Acura dealer and confirming with the Acura parts web-site on-line.
Last edited by coastal rider; 02-08-2015 at 10:47 PM.
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