Refrigerant
| Refrigerant Capacity | ||
| XJS through 1992 | Sanden Compressor | 3.5 Pound (US) (lb (US)) |
| Delco Compressor | 2.5 Pound (US) (lb (US)) | |
| XJ6 through 1992 | Delco Compressor | 2.5 Pound (US) (lb (US)) |
| All Models from 1993 | Sanden Compressor | 2.48 - 2.58 Pound (US) (lb (US)) |