Fuel tank: 15 of 15 variants rated.
Peugeot 504 Break GRD 2.3 tops the Peugeot 504 ranking by Fuel tank, at 60 L (15.9 gal US).
Across 15 ranked variants, Fuel tank spans from 56 L (14.8 gal US) to 60 L (15.9 gal US).
| # | Variant | Year | Body | Fuel | Fuel tank |
|---|---|---|---|---|---|
| 1 | Peugeot 504 Break GRD 2.3 | 1980 | Wagon | Diesel | 60 L (15.9 gal US) |
| 2 | Peugeot 504 Familiale D 2.3 | 1980 | Wagon | Diesel | 60 L (15.9 gal US) |
| 3 | Peugeot 504 Break 1.8 | 1979 | Wagon | Petrol | 60 L (15.9 gal US) |
| 4 | Peugeot 504 Break GR | 1979 | Wagon | Petrol | 60 L (15.9 gal US) |
| 5 | Peugeot 504 Familiale | 1979 | Wagon | Petrol | 60 L (15.9 gal US) |
| 6 | Peugeot 504 Break D 2.1 | 1979 | Wagon | Diesel | 60 L (15.9 gal US) |
| 7 | Peugeot 504 Coupé V6 | 1977 | Coupe | Petrol | 60 L (15.9 gal US) |
| 8 | Peugeot 504 GRD 2.3 | 1980 | Sedan | Diesel | 56 L (14.8 gal US) |
| 9 | Peugeot 504 SRD 2.3 | 1980 | Sedan | Diesel | 56 L (14.8 gal US) |
| 10 | Peugeot 504 GR 1.8 | 1979 | Sedan | Petrol | 56 L (14.8 gal US) |
| 11 | Peugeot 504 SR 1.8 | 1979 | Sedan | Petrol | 56 L (14.8 gal US) |
| 12 | Peugeot 504 GRD 2.1 | 1979 | Sedan | Diesel | 56 L (14.8 gal US) |
| 13 | Peugeot 504 SRD 2.1 | 1979 | Sedan | Diesel | 56 L (14.8 gal US) |
| 14 | Peugeot 504 Cabriolet | 1977 | Convertible | Petrol | 56 L (14.8 gal US) |
| 15 | Peugeot 504 Coupé | 1977 | Coupe | Petrol | 56 L (14.8 gal US) |