Terabass

2001 Honda Accord EX 4dr 4cyl ULEV.

I did a search but did not find much.

I'm at 104,000 Miles on the odometer and I believe it is time for a tune-up--which would include spark plugs. What are the best spark plugs for a ULEV engine? And where can I get them? (Hopefully Autozone or PepBoys).

1990AccordEX

NGK or DENSO

I believe they have it, i always bought mine thought http://www.hondaautomotiveparts.com/

JDM_DC4_Fanatic

PZR6FXI-11 - NGK Irridium plugs. Set the gap at .036" You'll increase your fuel economy, slight power increase, and less emissions.

However, if uoi want the OEM replacement number, its NGK PZR5F-11

Schmitey

NGK coppers. The iridiums aren't worth the money because they burn up pretty quick.

DCFIVER

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schmitey &raquo;</TD></TR><TR><TD CLASS="quote"> The iridiums aren't worth the money because they burn up pretty quick.</TD></TR></TABLE>

I've never seen this...and I drive hard.

Terabass

Set the gap at .036" --how do i set the gap? Do they come w/ a 0.36 gap or do i set it manually and if I set it manually is there a way to measure it or something?

professorman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Terabass &raquo;</TD></TR><TR><TD CLASS="quote">Set the gap at .036" --how do i set the gap? Do they come w/ a 0.36 gap or do i set it manually and if I set it manually is there a way to measure it or something?</TD></TR></TABLE>

You buy the little spark plug gapper from any auto store for about $1. The most common gapper is a round one looking like a large coin. You open it wider by prying it open or knock it down to make the gap smaller.

The-Kid

On my parents 01 LX ULEV, we used some Bosch +2 spark plugs. Works awesome. Compared to the OEM, it gave so much more power. I don't get why people hate Bosch, but it is good. So far, its great. But hey, if you wanna be on the safe side, OEM or similar.

white99CF

when buyin iridium plus the gap is already set dont bother it
believe me they let u kno that when u buy them

Terabass

So conclusion: Buy iridium plugs?

Bruce Banner

stik 2 coppers

pos_cd5

we've all had great experiance with the stock NGK coppers, and some have claimed reduced performance with other brands and/or material.

but here is some new and interesting information JDM_DC4_FANATIC informed us on that may or may not help you decide what to buy:

https://honda-tech.com/zerothread?id=2007632

twkdCD595

I stick with the ngk copper plugs and I have always had great results from them... in any of my previous or current honda's.

jakeiscool

you wont notice a difference between the cheapest and the most expensive. just dont buy bosch they are ******* terrible.

Schmitey

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JakeIsCool &raquo;</TD></TR><TR><TD CLASS="quote">you wont notice a difference between the cheapest and the most expensive. just dont buy bosch they are ******* terrible.</TD></TR></TABLE>

Couldn't agree more! Bosch is the only brand I've ever seen where you remove them (rods still intact) that all you get in the steel threads...the rest is in the cylinder.

The-Kid

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20ls01 &raquo;</TD></TR><TR><TD CLASS="quote">


maybe because your old plugs were super worn out? ngk is the way to go!</TD></TR></TABLE>

Nah I replaced them at like 12,000 miles. So awesome. Hey whatevers. People have their own opinion. We're not here to convince you...

Bruce Banner

anytime you put in new plugs for old plugs, you will feel a diff.

Terabass

NGK copper will it be, and does come w/ the 0.36 inch gap already?

Maybe someone can throw a link where I can buy them online, or what part number i should get.

Terabass

Consider pos_cd5 post and his link https://honda-tech.com/zerothread?id=2007632
I guess the iridium plugs are the choice? Ergh . I just want ultimate fuel eceonomy and power. No mods here.

pos_cd5

if you get the iridums be sure to post a review on what you think about them. not many people want to stray away from NGK coppers because of the consistent results we get from them. but if the iridums are truly better im sure a first ahnd review will persuade alot of people to take the step up.

cb7tougeracer

i use Denso Irridium in my drag car and NGK's in my DD

Bruce Banner

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pos_cd5 &raquo;</TD></TR><TR><TD CLASS="quote">if you get the iridums be sure to post a review on what you think about them. not many people want to stray away from NGK coppers because of the consistent results we get from them. but if the iridums are truly better im sure a first ahnd review will persuade alot of people to take the step up.</TD></TR></TABLE>
Plenty of first hand reviews on the net.
Iridiums aren't worth it despite the outlandish claims of +10 HP on Denso Iridiums.
Just google and you'll see.

20ls01

whats teh downside of gapping it at .36 instead of OEM .44?

JDM_DC4_Fanatic

I just want to make it clear, that I never said that Irridium plugs are the best. Furthermore, I never said that NGK as a brand was the best. I am mearly passing on information that I recieved from an NGK seminar. Even the instructor said that its not "NGK" irridium plugs that make the diffrence, its any irridium plug.

I will re-link the post I made, I think that people are misunderstand my intentions of the post.

Again, to recap, the use of irridium is intended to get the most fuel efficeny from the motor, not to make power.

https://honda-tech.com/zerothread?id=2007632

DCFIVER

I dont know that irridum plugs give any power at all, but i do know that i drive hard and the Irridum plugs last almost a year longer than copper plugs...