Fluid - Differential
| TYPE: | Standard | 90 HP (Hypoid Gear Oil) | |
| Tempo, Topaz 4WD | 90 HP* (Hypoid Gear Oil for Traction-LOK Differential) | ||
| Traction-LOK | 90 HP* | ||
| CAPACITY, Refill: | 7.5" ring gear: | 1989-91 Thunderbird/Cougar | 3.0 Pint (US) (pt (US)) |
| Others | 3.25 Pint (US) (pt (US)) | ||
| 8.8" ring gear: | Mark VIII | 3.0 Pint (US) (pt (US)) | |
| Thunderbird/Cougar | 3.25 Pint (US) (pt (US)) | ||
| Others | 3.75 Pint (US) (pt (US)) | ||
| Tempo, Topaz 4WD | 1.3 Pint (US) (pt (US)) |