Pathfinder V6 Spark Plug DIY guide

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doctahjones
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Postby doctahjones » Tue Apr 30, 2013 8:20 am

NmexMAX wrote:haven't done mine yet, but when I do, I'm going with the ones I listed above. They're also recommended by Uprev.

PN you listed is favored towards the FFV. Mine is not FFV, also, Ir is usually cheaper than Pt.

If you're hell bent on getting Pt, go for the D series. I prefer spending a little less and getting the same thing with the L series (Ir).

Same goes for the VQ35 in my Maxima, 15$ Pt parts, vs 8$ Ir parts.
where are you getting the info on ffv? mine's not ffv either.

the link from courtesy is a IR, not pt. if i lookup a 2010 pathy on ngk's site, it does pull up the DILFR5A11/93759 part vs the DILFR5C11/5443 part. guess either of those would work since they have the same gap.

what site/where did you find that the LFR5AIX-11/5034 part was the correct one?


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smj999smj
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Postby smj999smj » Tue Apr 30, 2013 8:35 am

PLFR5A-11 is the original equipment plug for the V6 up to 2008. It is a 105,000 mile spark plug. It is an NGK Laser Platinum.

LFR5AIX-11 is the economy iridium spark plug alternative for the V6. It is a 60000 mile spark plug. It is an NGK Iridium IX.

DILFR5A-11 is the original equipment plug for the V6 starting in 2008. It is an NGK OE Laser Iridium. It is a 105,000 mile plug.

DILFR5C-11 is the original equipment plug for the V8. It is an NGK OE Laser Iridium. It is a 105,000 mile plug.

Basically, the Iridium IX is to the OE Laser Iridium what the G-Platinum is to the Laser Platinum. The IX has a platinum tip only, whereas the Laser Platinum has a platinum tip and platinum on the ground electrode. The IX has an iridium tip only where the OE Laser Iridium has the iridium tip and uses iridium on the ground electrode.

The difference between the DILFR5A-11 and the DILFR5C-11 is the firing tip design. So, the PLFR5A-11 should be okay in the V8. Iridium is denser than platinum, so it is a better metal for a spark plug. Interestingly, NGK doesn't list the OE Laser Iridiums for the 2008 V6, although that is the plug that comes in it from the factory. Having not being able to get a hold of the OE Laser Iridiums when I was changing plugs on an 08 V6, I used the Laser Platinums and they work just fine. Surprisingly, NGK doesn't show any other alternative in their catalog for the V8.
Last edited by smj999smj on Tue Apr 30, 2013 9:07 am, edited 1 time in total.

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doctahjones
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Postby doctahjones » Tue Apr 30, 2013 9:04 am

smj999smj wrote:PLFR5A-11 is the original equipment plug for the V6 up to 2008. It is a 105,000 mile spark plug. It is an NGK Laser Platinum.

LFR5AIX-11 is the economy iridium spark plug alternative for the V6. It is a 60000 mile spark plug. It is an NGK Iridium IX.

DILFR5A-11 is the original equipment plug for the V6 starting in 2008. It is an NGK OE Laser Iridium. It is a 105,000 mile plug.

DILFR5C-11 is the original equipment plug for the V8. It is an NGK OE Laser Iridium. It is a 105,000 mile plug.

and where did you get all that info? :D


tried getting ahold of courtesy, but after two 7 minute "can we put you on hold for a minute?" holds i called NGK.

the rep said that he could find no difference between the 5A-11 and the 5C-11. Reach, gap, threading, etc are all the same.

he did not recommend using the IX-11 plugs as nissan (at least for '08+) started using the dual fine electrode design, which the IX-11 does not have. while technically they would screw in and would fire, ngk said they cannot recommend using that plug.

so I guess i'm ordering off fleabay, cheapest i can find them for:
http://www.ebay.com/itm/250922319526

$125 for 8 (2 orders of 4) with free shipping. other places have them for ~$20/plug with shipping. my local stores don't even carry them.

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smj999smj
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Postby smj999smj » Tue Apr 30, 2013 9:15 am

DILFR5A-11 has a different firing end construction than the DILFR5C-11. The "A" firing end is listed by NGK as "special design" and the "C" firing end is listed as "low angle ground electrode." I doubt that it means you'll notice any difference in performance between the two. Personally, I would just stick with the original equipment spark plug.

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smj999smj
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Postby smj999smj » Tue Apr 30, 2013 9:24 am

"so I guess i'm ordering off fleabay, cheapest i can find them for:
http://www.ebay.com/itm/250922319526

$125 for 8 (2 orders of 4) with free shipping. other places have them for ~$20/plug with shipping. my local stores don't even carry them.[/quote]


Actually, for your V8, search for NGK #5443. That's the OE plug. The ebay plug you listed is the NGK #93759, the V6 plug.

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doctahjones
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Postby doctahjones » Tue Apr 30, 2013 9:29 am

smj999smj wrote:
Actually, for your V8, search for NGK #5443. That's the OE plug. The ebay plug you listed is the NGK #93759, the V6 plug.

courtesyparts.com lists the 93759 for the v6 or the v8 (there's no other listing for v8 plugs besides 93759). i'm good with those, and after talking directly to ngk i'm doubly as good.

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smj999smj
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Postby smj999smj » Tue Apr 30, 2013 9:40 am

They'll work fine. ALLDATA lists the "A" plug like you ordered. NGK's website lists the "C" plug. Weird.. Like I said, it's only a difference in firing tip design. Doubt there's any noticeable difference in performance. Be nice to know which plug you pull out when you change them!

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volvite
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Postby volvite » Thu May 02, 2013 3:58 pm

Just tagging this thread so I know which plugs Doc pulls out of his V8

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doctahjones
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Postby doctahjones » Thu May 02, 2013 10:16 pm

volvite wrote:Just tagging this thread so I know which plugs Doc pulls out of his V8
going to take the wife to work tomorrow so i can do this during the day (i "work" from home) and not be stranded :)

i'll take pics and let ya know. i plan on taking off the top plastic intake cover and anything else that gets in the way....

and i'm betting the C's are what's installed, but i'm sure the A's will do just fine....

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doctahjones
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Postby doctahjones » Sat May 04, 2013 7:25 am

plugs changed. i pulled the "a"s out.

http://www.thenissanpath.com/viewtopic.php?t=8959

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disallow
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Postby disallow » Sat May 04, 2013 7:27 am

Pics of the old?

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doctahjones
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Postby doctahjones » Sat May 04, 2013 7:33 am

disallow wrote:Pics of the old?
it's in that link i posted. i made a new post with the write up of the change :)

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JAHBLESSINGS
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Postby JAHBLESSINGS » Mon May 13, 2013 6:54 pm

Just finished changing my plugs with oem parts. Wasn't too difficult took about an hour or so to do. I just moved the intake off to the side instead of fully removing it. If you are going for a non eom plug. just make sure it is the same length as the one you are removing. Ive seen spark plugs of all different lengths. so if its too long you'll have piston to plug contact. Ruin your day fast.
thanks for the write up.

robkatball
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Postby robkatball » Tue Aug 13, 2013 4:41 pm

Anybody? same question... thanks..

webmastir wrote:anyone know where to find torque specs for any of the bolts that were removed? i'm about to do this soon.

edit: nvm, i was being lazy:
http://www.thenissanpath.com/filelib/R51/Service/EM.pdf

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disallow
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Postby disallow » Tue Aug 13, 2013 4:44 pm

Same answer! :)


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