I'm not sure what the stock plugs are but always get iridium, they last a hella lot longer.

thewird

 

Nice^
I learned something new

 

So changin my plugs at 95k km's would be a good idea? or think they'd still be pretty clean?

 

Yes

 

Yes to changing em be a good idea? Or still be clean? Sorry

 

Can't go wrong with NGK or Denso Iridiums.

 

100k miles i believe

 

Its actually 105,000 miles for 6cyl and 110,000 miles for 4cyl

-- Sent from my Palm Pre 2 using Forums

 

meh 100k 110k 500k miles same thing

 

I bought an '02 Maxima with 154k miles on it, got a flashing SES light and a major miss at about 158k miles. Of course the code had to be an P0303, cylinder 3 misfire, the rear bank which meant the intake had to come off. Had a set of coil packs on hand, figured that was the problem until I pulled the plugs. Obviously the original plugs that should have been changed at 105k miles. Wondered how it was still running good prior to the misfire event, plugs were opened up to about a .080 gap!

I've got 75k miles on the Accord I just bought but it is 7 years old so I'll probably change them out sooner rather than later. I think 7 years is long enough for the plugs to be screwed into the heads. At least I won't have to pull an intake manifold this time.

 

Just incase anyone asks on how to change the spark plugs heres a diy i found... 7th V6 Gen spark plug DIY - Drive Accord Honda Forums

 

So nice that you don't have to take the intake manifold off.

 

I will be trying out denso next

 

I changed mine on my 2005 v6 at 75k to NGK last week. The gap on the old ones was still good but they were burned up pretty bad. Engine runs much smoother with the new plugs and my gas mileage improved slightly. Got six of them of amazon for $50, which is an awesome deal.

 

Was that 50 shipped?

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I just bought 6 NGK Laser Iridium for $43 that's with tax too. You have to use promo code ES123

 

Where?^!

 

Lol i forgot to mention where. I got it at Advance auto and I did a store pick up. You also pay $3 for tax. You can pay to ship but that's like $9

 

Advanced Auto has a P20 code for 20% off orders. I've been using that all summer

 

What ngk iridiums are ya'll using. the laser or the iridium IX's? i Can't seem to find the IX's for the 04. did find the new denso ik20 though. my stock ones are just regular denso iridium

 

Part # 6994 is the laser iridium spark plugs

 

As previously stated NGK laser iridium plugs are identical to the ones you get from the dealer less the small H that triples their value obviously. You aren't due for a new set of spark plugs until 105,000 with your timing belt service.

 

^he's right but at 50k miles they make the car drive like it took a fresh breath of air for the first time.

if you have the money and time, do it long before the recommended time. of course this recommendation is based on a car driven in SoCal DD with mixed driving styles.

 

I just did a change at 87,000, with the NGK's. Feels alot smoother now,especially in 1st and idle. The NGK's are nice. Changing the rears were no where near as hard as i expected, pretty easy actually.

 

My muffler tips are a little black, meaning I'm running rich correct? Is it safe to assume that my plugs and o2 sensors may be a little gunked up to?

 

yeah same thing, but mine at autozone for $9.99 a piece. you cant go wrong with that

 

How hard is it to replace the plugs on 2004 V6? Is it one of those jobs where you end up cursing in three different labuages, or a 30 minute walk in the park job? If done by a mechanic how much for the labor?

 

It is not bad. I did mine in 45 min. It takes a little longer to do the back three, since there is not much room.

 

I'm using NGK Laser Iridiums and they work good for me money well spent.

 

NGK laser Iridium plugs.......................

.......#6994 seem the best bet.................

I know the book calls for replacement at the 105,000 miles major (Timing belt et al) service...............

.....and I know several Honda-smart mechanics have indicated that plugs are good until about 120,000................

Appreciate any feedback from anyone who has pushed beyond 120,000 miles.

These plugs seem to last forever (no MPG or performance drop, no codes thrown at circa 109,500 miles).

thanks..........ez....

 

Appreciate any feedback from anyone who has pushed beyond 120,000 miles.

These plugs seem to last forever (no MPG or performance drop, no codes thrown at circa 109,500 miles).

thanks..........ez....

Not a Honda but I had a 2002 Maxima (VQ35) that developed a really bad miss in #3 (enough to make the SES light flash), at 159,000 miles, it was still running on the original plugs. Until the misfire, I would never had known. It was a 6 speed car and pulled noticeably harder than my first '02 Maxima which had the 4 speed automatic. Mileage was decent too. My guess is that newer cars have such overall excellent ignition systems that they can still run well on badly worn plugs. Stock gap is .045 on the VQ35, these were around .075-.080.

Kind of a pain to change the plugs on that car, intake had to come off to get to the back plugs. That meant a $42 intake gasket and about an hour of time (including taking pictures) to remove and replace.