7 de 7 variantes tienen datos de fuel tank.
| Variante | Año | Carrocería | Combustible | Fuel tank |
|---|---|---|---|---|
| Subaru WRX STI 2.5T Sport Premium | 2015 | Sedán | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport | 2014 | Sedán | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport Executive | 2014 | Sedán | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport | 2010 | Compacto | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport Executive | 2010 | Compacto | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport | 2010 | Sedán | Gasolina | 60 L |
| Subaru WRX STI 2.5T Sport Executive | 2010 | Sedán | Gasolina | 60 L |