Cadillac CTS Gas type by year
| Year | Gas type |
|---|---|
| 2019 | Depends on engine: premium or regular |
| 2018 | Depends on engine: premium or regular |
| 2017 | Depends on engine: premium or regular |
| 2016 | Depends on engine: premium or regular |
| 2015 | Depends on engine: regular or premium |
| 2014 | Depends on engine: regular or premium |
| 2013 | Depends on engine: regular or premium |
| 2012 | Depends on engine: regular or premium |
| 2011 | Depends on engine: regular or premium |
| 2010 | Depends on engine: regular or premium |
| 2009 | Regular |
| 2008 | Regular |
| 2007 | Depends on engine: regular or premium |
| 2006 | Depends on engine: regular or premium |
| 2005 | Depends on engine: regular or premium |
| 2004 | Depends on engine: premium or regular |
| 2003 | Premium |