7 de 7 variantes têm dados de fuel tank.
| Variante | Ano | Carroçaria | Combustível | Fuel tank |
|---|---|---|---|---|
| Subaru WRX STI 2.5T Sport Premium | 2015 | Sedã | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport | 2014 | Sedã | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport Executive | 2014 | Sedã | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport | 2010 | Hatchback | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport Executive | 2010 | Hatchback | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport | 2010 | Sedã | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport Executive | 2010 | Sedã | Gasolina | 60 L |