I replaced my spark plugs at 160,000km now hitting 187,000km I decided to check on them these ones only last about 30,000km they are Bosch platinum don't think I'll buy them again the centre electrode is worn right down past the insulator on the spark plug I assume it still works no issues are happeing, after checking the manual it recommends ngk something I forget right now but I did some searching and it turned out to be the iridium plugs costing $30aud per plug seems a bit much? what do you guys think worth it or not? Only difference I can see is 100,000km changes.

 

Rock auto has them for about 8 US per plug. Worth it for peace of mind for 100000 km

 

this website https://www.rockauto.com ? I can't seem to find the NGK IZFR6K13 spark plugs

 

Definitely worth it in my opinion because I had denso spark plugs and they were shorter then the NGK spark plugs which did cause me to lose some power.

 

Stay stock, stay happy.

I'm not opposed to aftermarket or alternate parts, but with spark plugs and oxygen sensors it's OE all the way. It doesn't matter where you get it, but "This is the exact part the engineers specified" means a lot with plugs.

 

I'm glad that you broke up OE parts because if you check inside the manual for the car it'll say there that NGK is the OE part.

 

Same brand as OE isn't the same as the actual OE part.

Yes, the Fit's simple and NGK only has the one part number for it but my last car was a Subaru and one of my local suppliers carries NGK Iridium IX and NGK Laser Iridium for it. The Laser Iridium is the OE plug. The Laser is a couple bucks more than the IX and is at their local warehouse instead of right on the shelf, but it's the actual OE part. That's worth a couple bucks and a bit of a wait.

 

Bosch + Honda = No good

Stick with NGK or Denso in Honda's. Toyota's also.

 

I just put the same plugs (bosch plantinum) in my 2007 honda fit, probably going to change them out ASAP after reading some stuff about them figured I'd get more mileage but seems to be a mistake, 30 dollar fix not a big deal.

 

You can't go wrong with NGK. Denso is good also but has a shorter life.

 

They are there, search by the Part Number. (NGK 6774)

And it says 2007 - 2013 Fit and (and some years Accord).

This is what we installed in our '07 a few months ago.

 

Honda kind of made changing the plugs on my Fit a pain, so I don't want to have to do it very often thus I want plugs that will last a long time. I may be mistaken, but I think that the oem plugs are 1)an iridium center electrode and 2)that the ground electrode has a small platinum disc welded to it. So if the gap is right when you install them (and I think they come already correctly gapped) it should stay pretty much the same for a very long time, with very little wear or erosion on either electrode, so you don't have to hassle with changing them for a long time. If this is true then it is probably worth it.

 

Just to help you out, those numbers are the same exact model.

 

I'm not sure how changing the spark plugs could be any easier. Easily done in under an hour.

OP I'm sure you're long past having changed your plugs, but I would reiterate what others have said about just keeping stock with the plugs.