Ill have to check those out. The parts guy said in these older vehicles the copper tops don't work as good and recommended the iradiums and a couple others ( all ranging around $8 a pop ) so I will trust what I read here due to experiences with them by the members and snag up a few in the next couple days since the DMVs are all closed til May might as well tune er up ! Including cleaning that MAF sensor and throttle body.

 

Stick with the AC Delco iridium ... You will likely have problems with anything else.

 

And Don’t forget our discount at RockAuto!

https://www.chevyhhr.net/forums/supp...-2020-a-61707/

 

Noted, Thank you and OldBlue

 

I seen something about that but cant find it?

 

On the AC DELCO Iradium, they have 2, one with copper electrode the other with Iridium electrode, are you referring the iridium electrode is the best one to get? Same price, but different electrodes oddly.

 

ACDelco 41-103

 

AC Delco 41-103 iridium, these Ecotec’s were designed around those plugs. I’ve tried Bosch platinum and Motorcraft copper core, those E plugs, all fouled pretty quickly, the 41-103’s lasted 100,000 miles, and Oldblue was at 284,000 when I sold him to fastsuv, and it’s still running great today at over 300,000 miles

https://www.chevyhhr.net/forums/supp...-2020-a-61707/

 

Yep those 41-103 are what Im looking at, My HHR has 208,400 on the clock so shes up there. Still good n tight from what I can tell so far.

 

87 is fine if you have a 2.2 or 2.4. 91 required if you have an ss. One of my hhr’s is getting tuned on avgas and methanol in the next few weeks. I have copper marine plugs in that one