1990 GMC Rally Oil Type & Capacity
The 1990 GMC Rally oil type depends on the engine: the G1500, 4.3 Z, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G1500, 4.3 Z, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G1500, 5.0 H, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G1500, 5.0 H, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G1500, 5.7 K, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G1500, 5.7 K, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 4.3 Z, 4L60/MD8 takes 5W-30 (4.0 quarts with filter); the G2500, 4.3 Z, 700R4/MD8 takes 5W-30 (4.0 quarts with filter); the G2500, 5.0 H, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 5.0 H, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 5.7 K, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 5.7 K, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 6.2 C, 4L60/MD8 takes 5W-30 (7.0 quarts with filter); the G2500, 6.2 C, 700R4/MD8 takes 5W-30 (7.0 quarts with filter); the G3500, Van Passenger Extended, 5.7 K, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger Extended, 5.7 K, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger Extended, 5.7 K, 400/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger Extended, 5.7 K, 475/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger Extended, 5.7 K, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger Extended, 5.7 K, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger Extended, 7.4 N, 4L60/MD8 takes 5W-30 (6.0 quarts with filter); the G3500, Van Passenger Extended, 7.4 N, 700R4/MD8 takes 5W-30 (6.0 quarts with filter); the G3500, Van Passenger, 5.7 K, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger, 5.7 K, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger, 5.7 K, 400/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger, 5.7 K, 475/M40 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger, 5.7 K, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger, 5.7 K, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G3500, Van Passenger, 6.2 J, 3L80-HD/M40 takes 5W-30 (7.0 quarts with filter); the G3500, Van Passenger, 6.2 J, 3L80/M40 takes 5W-30 (7.0 quarts with filter); the G3500, Van Passenger, 6.2 J, 400/M40 takes 5W-30 (7.0 quarts with filter); the G3500, Van Passenger, 6.2 J, 475/M40 takes 5W-30 (7.0 quarts with filter); the G3500, Van Passenger, 7.4 N, 4L60/MD8 takes 5W-30 (6.0 quarts with filter); the G3500, Van Passenger, 7.4 N, 700R4/MD8 takes 5W-30 (6.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- G1500, 4.3 Z, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G1500, 4.3 Z, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G1500, 5.7 K, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G1500, 5.7 K, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 4.3 Z, 4L60/MD8: 5W-30, 4.0 quarts with filter
- G2500, 4.3 Z, 700R4/MD8: 5W-30, 4.0 quarts with filter
- G2500, 5.0 H, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 5.7 K, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G2500, 5.7 K, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 6.2 C, 4L60/MD8: 5W-30, 7.0 quarts with filter
- G2500, 6.2 C, 700R4/MD8: 5W-30, 7.0 quarts with filter
- G3500, Van Passenger Extended, 5.7 K, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger Extended, 5.7 K, 3L80/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger Extended, 5.7 K, 400/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger Extended, 5.7 K, 475/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger Extended, 5.7 K, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger Extended, 5.7 K, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger Extended, 7.4 N, 4L60/MD8: 5W-30, 6.0 quarts with filter
- G3500, Van Passenger Extended, 7.4 N, 700R4/MD8: 5W-30, 6.0 quarts with filter
- G3500, Van Passenger, 5.7 K, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger, 5.7 K, 3L80/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger, 5.7 K, 400/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger, 5.7 K, 475/M40: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger, 5.7 K, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger, 5.7 K, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G3500, Van Passenger, 6.2 J, 3L80-HD/M40: 5W-30, 7.0 quarts with filter
- G3500, Van Passenger, 6.2 J, 3L80/M40: 5W-30, 7.0 quarts with filter
- G3500, Van Passenger, 6.2 J, 400/M40: 5W-30, 7.0 quarts with filter
- G3500, Van Passenger, 6.2 J, 475/M40: 5W-30, 7.0 quarts with filter
- G3500, Van Passenger, 7.4 N, 4L60/MD8: 5W-30, 6.0 quarts with filter
- G3500, Van Passenger, 7.4 N, 700R4/MD8: 5W-30, 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| G1500, 4.3 Z, 4L60/MD8 — G1500,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 4.3 Z, 4L60/MD8 — G1500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 4.3 Z, 700R4/MD8 — G1500,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 4.3 Z, 700R4/MD8 — G1500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.0 H, 4L60/MD8 — G1500,5.0L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G1500, 5.0 H, 4L60/MD8 — G1500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.0 H, 700R4/MD8 — G1500,5.0L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G1500, 5.0 H, 700R4/MD8 — G1500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.7 K, 4L60/MD8 — G1500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G1500, 5.7 K, 4L60/MD8 — G1500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.7 K, 700R4/MD8 — G1500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G1500, 5.7 K, 700R4/MD8 — G1500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 4.3 Z, 4L60/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G2500, 4.3 Z, 700R4/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G2500, 5.0 H, 4L60/MD8 — G2500,5.0L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G2500, 5.0 H, 4L60/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G2500, 5.0 H, 700R4/MD8 — G2500,5.0L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G2500, 5.0 H, 700R4/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G2500, 5.7 K, 4L60/MD8 — G2500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G2500, 5.7 K, 4L60/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G2500, 5.7 K, 700R4/MD8 — G2500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| G2500, 5.7 K, 700R4/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G2500, 6.2 C, 4L60/MD8 — G2500,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G2500, 6.2 C, 4L60/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G2500, 6.2 C, 700R4/MD8 — G2500,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G2500, 6.2 C, 700R4/MD8 — G2500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| G3500, Van Passenger Extended, 5.7 K, 3L80-HD/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger Extended, 5.7 K, 3L80-HD/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger Extended, 5.7 K, 3L80/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger Extended, 5.7 K, 3L80/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger Extended, 5.7 K, 400/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger Extended, 5.7 K, 400/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger Extended, 5.7 K, 475/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger Extended, 5.7 K, 475/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger Extended, 5.7 K, 4L60/MD8 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger Extended, 5.7 K, 4L60/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger Extended, 5.7 K, 700R4/MD8 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger Extended, 5.7 K, 700R4/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger Extended, 7.4 N, 4L60/MD8 — G3500,7.4L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 6.00 QTS. | 5.00 QTS. | — |
| G3500, Van Passenger Extended, 7.4 N, 4L60/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger Extended, 7.4 N, 700R4/MD8 — G3500,7.4L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 6.00 QTS. | 5.00 QTS. | — |
| G3500, Van Passenger Extended, 7.4 N, 700R4/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 5.7 K, 3L80-HD/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger, 5.7 K, 3L80-HD/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 5.7 K, 3L80/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger, 5.7 K, 3L80/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 5.7 K, 400/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger, 5.7 K, 400/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 5.7 K, 475/M40 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger, 5.7 K, 475/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 5.7 K, 4L60/MD8 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger, 5.7 K, 4L60/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 5.7 K, 700R4/MD8 — G3500,5.7L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, Van Passenger, 5.7 K, 700R4/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 3L80-HD/M40 — G3500,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 3L80-HD/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 3L80/M40 — G3500,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 3L80/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 400/M40 — G3500,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 400/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 475/M40 — G3500,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G3500, Van Passenger, 6.2 J, 475/M40 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 7.4 N, 4L60/MD8 — G3500,7.4L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 6.00 QTS. | 5.00 QTS. | — |
| G3500, Van Passenger, 7.4 N, 4L60/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, Van Passenger, 7.4 N, 700R4/MD8 — G3500,7.4L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 6.00 QTS. | 5.00 QTS. | — |
| G3500, Van Passenger, 7.4 N, 700R4/MD8 — G3500 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
Buy the right oil
Buy 5W-30 motor oil on Amazon1990 GMC Rally oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Rally
1990 GMC Rally factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
11.0 quarts (10.4 L) — 56/44 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M. If equipped with Auxiliary Heater add 2.84 qts.
Frequently asked questions
What type of oil does a 1990 GMC Rally take?
It depends on the engine: G1500, 4.3 Z, 4L60/MD8 uses 5W-30; G1500, 4.3 Z, 700R4/MD8 uses 5W-30; G1500, 5.0 H, 4L60/MD8 uses 5W-30; G1500, 5.0 H, 700R4/MD8 uses 5W-30; G1500, 5.7 K, 4L60/MD8 uses 5W-30; G1500, 5.7 K, 700R4/MD8 uses 5W-30; G2500, 4.3 Z, 4L60/MD8 uses 5W-30; G2500, 4.3 Z, 700R4/MD8 uses 5W-30; G2500, 5.0 H, 4L60/MD8 uses 5W-30; G2500, 5.0 H, 700R4/MD8 uses 5W-30; G2500, 5.7 K, 4L60/MD8 uses 5W-30; G2500, 5.7 K, 700R4/MD8 uses 5W-30; G2500, 6.2 C, 4L60/MD8 uses 5W-30; G2500, 6.2 C, 700R4/MD8 uses 5W-30; G3500, Van Passenger Extended, 5.7 K, 3L80-HD/M40 uses 5W-30; G3500, Van Passenger Extended, 5.7 K, 3L80/M40 uses 5W-30; G3500, Van Passenger Extended, 5.7 K, 400/M40 uses 5W-30; G3500, Van Passenger Extended, 5.7 K, 475/M40 uses 5W-30; G3500, Van Passenger Extended, 5.7 K, 4L60/MD8 uses 5W-30; G3500, Van Passenger Extended, 5.7 K, 700R4/MD8 uses 5W-30; G3500, Van Passenger Extended, 7.4 N, 4L60/MD8 uses 5W-30; G3500, Van Passenger Extended, 7.4 N, 700R4/MD8 uses 5W-30; G3500, Van Passenger, 5.7 K, 3L80-HD/M40 uses 5W-30; G3500, Van Passenger, 5.7 K, 3L80/M40 uses 5W-30; G3500, Van Passenger, 5.7 K, 400/M40 uses 5W-30; G3500, Van Passenger, 5.7 K, 475/M40 uses 5W-30; G3500, Van Passenger, 5.7 K, 4L60/MD8 uses 5W-30; G3500, Van Passenger, 5.7 K, 700R4/MD8 uses 5W-30; G3500, Van Passenger, 6.2 J, 3L80-HD/M40 uses 5W-30; G3500, Van Passenger, 6.2 J, 3L80/M40 uses 5W-30; G3500, Van Passenger, 6.2 J, 400/M40 uses 5W-30; G3500, Van Passenger, 6.2 J, 475/M40 uses 5W-30; G3500, Van Passenger, 7.4 N, 4L60/MD8 uses 5W-30; G3500, Van Passenger, 7.4 N, 700R4/MD8 uses 5W-30.
How much oil does a 1990 GMC Rally take?
Capacity depends on the engine: G1500, 4.3 Z, 4L60/MD8 holds 5.0 quarts with filter; G1500, 4.3 Z, 700R4/MD8 holds 5.0 quarts with filter; G1500, 5.0 H, 4L60/MD8 holds 5.0 quarts with filter; G1500, 5.0 H, 700R4/MD8 holds 5.0 quarts with filter; G1500, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; G1500, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; G2500, 4.3 Z, 4L60/MD8 holds 4.0 quarts with filter; G2500, 4.3 Z, 700R4/MD8 holds 4.0 quarts with filter; G2500, 5.0 H, 4L60/MD8 holds 5.0 quarts with filter; G2500, 5.0 H, 700R4/MD8 holds 5.0 quarts with filter; G2500, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; G2500, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; G2500, 6.2 C, 4L60/MD8 holds 7.0 quarts with filter; G2500, 6.2 C, 700R4/MD8 holds 7.0 quarts with filter; G3500, Van Passenger Extended, 5.7 K, 3L80-HD/M40 holds 5.0 quarts with filter; G3500, Van Passenger Extended, 5.7 K, 3L80/M40 holds 5.0 quarts with filter; G3500, Van Passenger Extended, 5.7 K, 400/M40 holds 5.0 quarts with filter; G3500, Van Passenger Extended, 5.7 K, 475/M40 holds 5.0 quarts with filter; G3500, Van Passenger Extended, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; G3500, Van Passenger Extended, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; G3500, Van Passenger Extended, 7.4 N, 4L60/MD8 holds 6.0 quarts with filter; G3500, Van Passenger Extended, 7.4 N, 700R4/MD8 holds 6.0 quarts with filter; G3500, Van Passenger, 5.7 K, 3L80-HD/M40 holds 5.0 quarts with filter; G3500, Van Passenger, 5.7 K, 3L80/M40 holds 5.0 quarts with filter; G3500, Van Passenger, 5.7 K, 400/M40 holds 5.0 quarts with filter; G3500, Van Passenger, 5.7 K, 475/M40 holds 5.0 quarts with filter; G3500, Van Passenger, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; G3500, Van Passenger, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; G3500, Van Passenger, 6.2 J, 3L80-HD/M40 holds 7.0 quarts with filter; G3500, Van Passenger, 6.2 J, 3L80/M40 holds 7.0 quarts with filter; G3500, Van Passenger, 6.2 J, 400/M40 holds 7.0 quarts with filter; G3500, Van Passenger, 6.2 J, 475/M40 holds 7.0 quarts with filter; G3500, Van Passenger, 7.4 N, 4L60/MD8 holds 6.0 quarts with filter; G3500, Van Passenger, 7.4 N, 700R4/MD8 holds 6.0 quarts with filter.
Can I use synthetic oil in my 1990 GMC Rally?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 GMC Rally. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.