Owner reviews for spark plug

Denso for my runner

Make sure you use genuine NGK plugs, otherwise you will have problems.

I used the gimmicky Bosch Platinum 4+ plugs which solved that problem (no more CELs) but sometimes idle is still a bit rough.

I run Champion plugs in my Harleys. I have never had an issue with them and when I did try others, I never noticed any improvement over the Champions.

Denso or NGK. Buy them from a real vendor not eBay or Amazon or anything like that

Replace with OEM - Denso. And yeah, get them from rock auto. Anywhere else is way too expensive and eBay is most likely counterfeit garbage.

2004 1.4 Jazz. 225.000 kms approximately. It is OK but the idling is poor (having done a valve clearance and changed spark plugs and coils). Meh…..it is still holding so I’m hoping for 100.000 kms more

Out with the old and in with the ngk 94833

Don't use AutoZone crap

These things literally blast out spark plugs ????. Lots of other tricky issues too. I'm know I'm very biased towards GM but I wouldn't mess with this generation at all for a Ford lol.

I changed the plugs on my 2017 raptor recently with NGK iridium plugs. The punchline is that the truck started backfiring when I pushed it. I ended up putting Motorcraft plugs in and it cleared up.