Fuel tank: 4 of 4 variants rated.
Mitsubishi Sigma 3.0i V6 SOHC tops the Mitsubishi Sigma ranking by Fuel tank, at 72 L (19.0 gal US).
| # | Variant | Year | Body | Fuel | Fuel tank |
|---|---|---|---|---|---|
| 1 | Mitsubishi Sigma 3.0i V6 SOHC | 1995 | Sedan | Petrol | 72 L (19.0 gal US) |
| 2 | Mitsubishi Sigma 3.0i V6 DOHC+1 | 1991 | Sedan | Petrol | 72 L (19.0 gal US) |
| 3 | Mitsubishi Sigma 3.0i V6 4WS DOHC | 1991 | Sedan | Petrol | 72 L (19.0 gal US) |
| 4 | Mitsubishi Sigma Station Wagon 3.0i V6 | 1993 | Wagon | Petrol | 71 L (18.8 gal US) |