Buick Regal Gas type by year
| Year | Gas type |
|---|---|
| 2020 | Depends on engine: premium or regular |
| 2019 | Depends on engine: premium or regular |
| 2018 | Depends on engine: premium or regular |
| 2017 | Depends on engine: premium or regular |
| 2016 | Regular |
| 2015 | Regular |
| 2014 | Regular |
| 2013 | Regular (flex-fuel E85 engine available) |
| 2012 | Regular (flex-fuel E85 engine available) |
| 2011 | Regular (flex-fuel E85 engine available) |
| 2004 | Depends on engine: regular or premium |
| 2003 | Depends on engine: premium or regular |
| 2002 | Depends on engine: premium or regular |
| 2001 | Depends on engine: regular or premium |
| 2000 | Depends on engine: regular or premium |