Why would the gas caps be different between models? That doesn't make any sense!

 

i don't know why either. You can check for yourself on kragen.com or autozone.com There are two different models for the gas caps. I know, it is weird.

 

Maybe on the gas cap there is a reference to fuel type? 2.4 recommending premium?

 

Just checked my 2.4...no reference to premium. There is a little picture of a book opened with an "i" on the opened page. I guess that means look in the owners manual for information?

 

but he's buying an aftermarket locking one so maybe?!?

 

My thoughts as well.

 

Are you sure you have the 2.4, I remember when I saw Karens and yours jay that their was that sticker on the inside of the hood on the drivers side I think that said all the info on the motor. Basically what everone said before me. lol

 

It's got nothing to do with which motor on the gas caps, I jusr remember that before people were having trouble find ANY locking caps that fit right, the door wouldn't close all the way.

https://www.chevyhhr.net/forums/show...hlight=locking

 

Actually, they changed the 2.2 for '07, here is a members pic of his '07. I have seen this personally, the biggest difference on the valve cover is that the 2.2's don't have "VVT" under the "ecotec" on the valve cover.

 

As I mentioned way back when, I traded a '99 GMC Sonoma (S-10) for the HHR. I had a GM locking gas on it which the salesman swapped for the regular cap on the HHR. It fit with no problem So go figure!