Should I use Walmart/Arco (insert crappy gas name here) in my CTS/ CTS-V?
• Here is a TSB from General Motors regarding Acceptable Gas Quality: PDF FILE • Here is a Acticle from the LA times regarding gas quality: latimes.pdf • Here is a link to the Top Tier Gas site: http://www.toptiergas.com This is something I put together a while ago to convince my Girlfriend NOT to use ARCO gas. It is my conclusions based on internet research. I am not an expert.