Lot of new members on the forum since last year when posted the GM TechLink Bulletins online source, so here it is again. TechLink is a "tips & tricks" type of newsletter of sorts that goes out to GM service dept.'s

http://216.182.211.32/techlink/image.../TLjul08e.html

 

Under "Fix it Right The First Time-- Car" bulletin 08-06-04-022
is noted which deals with intermittent Service Engine Soon light and reduced engine power on HHR.

You can also find the most current revision of the GM6094M approved motor oils list in the "Reference Guides" section.

 

I loved the writeup on the Radio. I wonder if it will fit in my 2007?

 

I'm interested in that radio also. Wonder how much it would cost to trade mine in on the new one....that is....if it will fit.

 

Great information - this Noob appreciates your sharing