I'm going to change my plugs. What should I get.Denso Iridium? NGK iridium? Should I go 1 heat range colder?

 

I heard its best to use the stock NGK's.

 

 

After reading all the posts, I bought some Densos but haven't installed them yet. If you get them be very careful setting the gaps. I ruined one of the electrodes tring to bend the tip. The electrode is tiny and the tip is enormous. I need to buy some kind of real gapper, and now I need to buy another plug to replace the one I ruined.

 

Go to UNDER THE HOOD forum...

All the findings I get lead to the answer


OEM....all the way unless you have crazy head upgrades or NO2

 

NGK iridium!!!

 

OEM NGK plugs.

Here's why I don't like Denso plugs: Failed Plug Post

BTW, Bill - Platinum and irridium plugs should not need to be gapped. It sounds like you found out how delicate the center electrode is!

 

i've always ran ngk's don't trust much else.

 

Man, I searched forever for that kind of info. thanks for posting the link. There is just too many posts about plugs to sort through. That is good info. It seems like Densos are more susceptible to heat issues. Since I'm stock, I'll play safe and go to NGKs. You recommend 7772 or 7173?

As for the Denso gaps, I measured .030 out of the box. I thought .039 was around the right gap?