1985 GMC Rally Oil Type & Capacity
The 1985 GMC Rally oil type depends on the engine: the G1500, 4.3 N, Automatic, 350C/MV4 takes 5W-30 (5.0 quarts with filter); the G1500, 4.3 N, Automatic, 400/M40 takes 5W-30 (5.0 quarts with filter); the G1500, 4.3 N, Automatic, 475/M40 takes 5W-30 (5.0 quarts with filter); the G1500, 4.3 N, Automatic, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G1500, 4.3 N, Standard takes 5W-30 (5.0 quarts with filter); the G1500, 5.0 H, 350C/MV4 takes 5W-30 (5.0 quarts with filter); the G1500, 5.0 H, 400/M40 takes 5W-30 (5.0 quarts with filter); the G1500, 5.0 H, 475/M40 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 L, 350C/MV4 takes 5W-30 (5.0 quarts with filter); the G1500, 5.7 L, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 4.3 N, Automatic, 350C/MV4 takes 5W-30 (5.0 quarts with filter); the G2500, 4.3 N, Automatic, 400/M40 takes 5W-30 (5.0 quarts with filter); the G2500, 4.3 N, Automatic, 475/M40 takes 5W-30 (5.0 quarts with filter); the G2500, 4.3 N, Automatic, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 4.3 N, Standard takes 5W-30 (5.0 quarts with filter); the G2500, 5.0 H, 350C/MV4 takes 5W-30 (5.0 quarts with filter); the G2500, 5.0 H, 400/M40 takes 5W-30 (5.0 quarts with filter); the G2500, 5.0 H, 475/M40 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 L, 350C/MV4 takes 5W-30 (5.0 quarts with filter); the G2500, 5.7 L, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G2500, 6.2 C, Automatic, 350C/MV4 takes 10W-30 (7.0 quarts with filter); the G2500, 6.2 C, Automatic, 700R4/MD8 takes 10W-30 (7.0 quarts with filter); the G2500, 6.2 C, Standard takes 10W-30 (7.0 quarts with filter); the G3500, 5.7 L takes 5W-30 (5.0 quarts with filter); the G3500, 5.7 M, 400/M40 takes 5W-30 (5.0 quarts with filter); the G3500, 5.7 M, 475/M40 takes 5W-30 (5.0 quarts with filter); the G3500, 5.7 M, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G3500, 6.2 J, 400/M40 takes 10W-30 (7.0 quarts with filter); the G3500, 6.2 J, 475/M40 takes 10W-30 (7.0 quarts with filter); the G3500, 6.2 J, 700R4/MD8 takes 10W-30 (7.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- G1500, 4.3 N, Automatic, 350C/MV4: 5W-30, 5.0 quarts with filter
- G1500, 4.3 N, Automatic, 400/M40: 5W-30, 5.0 quarts with filter
- G1500, 4.3 N, Automatic, 475/M40: 5W-30, 5.0 quarts with filter
- G1500, 4.3 N, Automatic, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G1500, 4.3 N, Standard: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, 350C/MV4: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, 400/M40: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, 475/M40: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G1500, 5.7 L, 350C/MV4: 5W-30, 5.0 quarts with filter
- G1500, 5.7 L, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 4.3 N, Automatic, 350C/MV4: 5W-30, 5.0 quarts with filter
- G2500, 4.3 N, Automatic, 400/M40: 5W-30, 5.0 quarts with filter
- G2500, 4.3 N, Automatic, 475/M40: 5W-30, 5.0 quarts with filter
- G2500, 4.3 N, Automatic, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 4.3 N, Standard: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, 350C/MV4: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, 400/M40: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, 475/M40: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 5.7 L, 350C/MV4: 5W-30, 5.0 quarts with filter
- G2500, 5.7 L, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 6.2 C, Automatic, 350C/MV4: 10W-30, 7.0 quarts with filter
- G2500, 6.2 C, Automatic, 700R4/MD8: 10W-30, 7.0 quarts with filter
- G2500, 6.2 C, Standard: 10W-30, 7.0 quarts with filter
- G3500, 5.7 L: 5W-30, 5.0 quarts with filter
- G3500, 5.7 M, 400/M40: 5W-30, 5.0 quarts with filter
- G3500, 5.7 M, 475/M40: 5W-30, 5.0 quarts with filter
- G3500, 5.7 M, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G3500, 6.2 J, 400/M40: 10W-30, 7.0 quarts with filter
- G3500, 6.2 J, 475/M40: 10W-30, 7.0 quarts with filter
- G3500, 6.2 J, 700R4/MD8: 10W-30, 7.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| G1500, 4.3 N, Automatic, 350C/MV4 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 4.3 N, Automatic, 400/M40 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 4.3 N, Automatic, 475/M40 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 4.3 N, Automatic, 700R4/MD8 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 4.3 N, Standard — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.0 H, 350C/MV4 — G1500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 5.0 H, 350C/MV4 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.0 H, 400/M40 — G1500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 5.0 H, 400/M40 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.0 H, 475/M40 — G1500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 5.0 H, 475/M40 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.0 H, 700R4/MD8 — G1500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 5.0 H, 700R4/MD8 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.7 L, 350C/MV4 — G1500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 5.7 L, 350C/MV4 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G1500, 5.7 L, 700R4/MD8 — G1500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G1500, 5.7 L, 700R4/MD8 — G1500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 4.3 N, Automatic, 350C/MV4 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 4.3 N, Automatic, 400/M40 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 4.3 N, Automatic, 475/M40 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 4.3 N, Automatic, 700R4/MD8 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 4.3 N, Standard — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 5.0 H, 350C/MV4 — G2500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G2500, 5.0 H, 350C/MV4 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 5.0 H, 400/M40 — G2500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G2500, 5.0 H, 400/M40 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 5.0 H, 475/M40 — G2500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G2500, 5.0 H, 475/M40 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 5.0 H, 700R4/MD8 — G2500,5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G2500, 5.0 H, 700R4/MD8 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 5.7 L, 350C/MV4 — G2500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G2500, 5.7 L, 350C/MV4 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 5.7 L, 700R4/MD8 — G2500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G2500, 5.7 L, 700R4/MD8 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 6.2 C, Automatic, 350C/MV4 — G2500,6.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G2500, 6.2 C, Automatic, 350C/MV4 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 6.2 C, Automatic, 700R4/MD8 — G2500,6.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G2500, 6.2 C, Automatic, 700R4/MD8 — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G2500, 6.2 C, Standard — G2500,6.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G2500, 6.2 C, Standard — G2500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, 5.7 L — G3500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, 5.7 L — G3500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, 5.7 M, 400/M40 — G3500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, 5.7 M, 400/M40 — G3500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, 5.7 M, 475/M40 — G3500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, 5.7 M, 475/M40 — G3500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, 5.7 M, 700R4/MD8 — G3500,5.7L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G3500, 5.7 M, 700R4/MD8 — G3500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, 6.2 J, 400/M40 — G3500,6.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G3500, 6.2 J, 400/M40 — G3500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, 6.2 J, 475/M40 — G3500,6.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G3500, 6.2 J, 475/M40 — G3500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G3500, 6.2 J, 700R4/MD8 — G3500,6.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G3500, 6.2 J, 700R4/MD8 — G3500 | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
Buy the right oil
Buy 5W-30 motor oil on AmazonBuy 10W-30 motor oil on Amazon1985 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
1985 GMC Rally factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
18.0 quarts (17.03 L) — 56/44 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1985 GMC Rally take?
It depends on the engine: G1500, 4.3 N, Automatic, 350C/MV4 uses 5W-30; G1500, 4.3 N, Automatic, 400/M40 uses 5W-30; G1500, 4.3 N, Automatic, 475/M40 uses 5W-30; G1500, 4.3 N, Automatic, 700R4/MD8 uses 5W-30; G1500, 4.3 N, Standard uses 5W-30; G1500, 5.0 H, 350C/MV4 uses 5W-30; G1500, 5.0 H, 400/M40 uses 5W-30; G1500, 5.0 H, 475/M40 uses 5W-30; G1500, 5.0 H, 700R4/MD8 uses 5W-30; G1500, 5.7 L, 350C/MV4 uses 5W-30; G1500, 5.7 L, 700R4/MD8 uses 5W-30; G2500, 4.3 N, Automatic, 350C/MV4 uses 5W-30; G2500, 4.3 N, Automatic, 400/M40 uses 5W-30; G2500, 4.3 N, Automatic, 475/M40 uses 5W-30; G2500, 4.3 N, Automatic, 700R4/MD8 uses 5W-30; G2500, 4.3 N, Standard uses 5W-30; G2500, 5.0 H, 350C/MV4 uses 5W-30; G2500, 5.0 H, 400/M40 uses 5W-30; G2500, 5.0 H, 475/M40 uses 5W-30; G2500, 5.0 H, 700R4/MD8 uses 5W-30; G2500, 5.7 L, 350C/MV4 uses 5W-30; G2500, 5.7 L, 700R4/MD8 uses 5W-30; G2500, 6.2 C, Automatic, 350C/MV4 uses 10W-30; G2500, 6.2 C, Automatic, 700R4/MD8 uses 10W-30; G2500, 6.2 C, Standard uses 10W-30; G3500, 5.7 L uses 5W-30; G3500, 5.7 M, 400/M40 uses 5W-30; G3500, 5.7 M, 475/M40 uses 5W-30; G3500, 5.7 M, 700R4/MD8 uses 5W-30; G3500, 6.2 J, 400/M40 uses 10W-30; G3500, 6.2 J, 475/M40 uses 10W-30; G3500, 6.2 J, 700R4/MD8 uses 10W-30.
How much oil does a 1985 GMC Rally take?
Capacity depends on the engine: G1500, 4.3 N, Automatic, 350C/MV4 holds 5.0 quarts with filter; G1500, 4.3 N, Automatic, 400/M40 holds 5.0 quarts with filter; G1500, 4.3 N, Automatic, 475/M40 holds 5.0 quarts with filter; G1500, 4.3 N, Automatic, 700R4/MD8 holds 5.0 quarts with filter; G1500, 4.3 N, Standard holds 5.0 quarts with filter; G1500, 5.0 H, 350C/MV4 holds 5.0 quarts with filter; G1500, 5.0 H, 400/M40 holds 5.0 quarts with filter; G1500, 5.0 H, 475/M40 holds 5.0 quarts with filter; G1500, 5.0 H, 700R4/MD8 holds 5.0 quarts with filter; G1500, 5.7 L, 350C/MV4 holds 5.0 quarts with filter; G1500, 5.7 L, 700R4/MD8 holds 5.0 quarts with filter; G2500, 4.3 N, Automatic, 350C/MV4 holds 5.0 quarts with filter; G2500, 4.3 N, Automatic, 400/M40 holds 5.0 quarts with filter; G2500, 4.3 N, Automatic, 475/M40 holds 5.0 quarts with filter; G2500, 4.3 N, Automatic, 700R4/MD8 holds 5.0 quarts with filter; G2500, 4.3 N, Standard holds 5.0 quarts with filter; G2500, 5.0 H, 350C/MV4 holds 5.0 quarts with filter; G2500, 5.0 H, 400/M40 holds 5.0 quarts with filter; G2500, 5.0 H, 475/M40 holds 5.0 quarts with filter; G2500, 5.0 H, 700R4/MD8 holds 5.0 quarts with filter; G2500, 5.7 L, 350C/MV4 holds 5.0 quarts with filter; G2500, 5.7 L, 700R4/MD8 holds 5.0 quarts with filter; G2500, 6.2 C, Automatic, 350C/MV4 holds 7.0 quarts with filter; G2500, 6.2 C, Automatic, 700R4/MD8 holds 7.0 quarts with filter; G2500, 6.2 C, Standard holds 7.0 quarts with filter; G3500, 5.7 L holds 5.0 quarts with filter; G3500, 5.7 M, 400/M40 holds 5.0 quarts with filter; G3500, 5.7 M, 475/M40 holds 5.0 quarts with filter; G3500, 5.7 M, 700R4/MD8 holds 5.0 quarts with filter; G3500, 6.2 J, 400/M40 holds 7.0 quarts with filter; G3500, 6.2 J, 475/M40 holds 7.0 quarts with filter; G3500, 6.2 J, 700R4/MD8 holds 7.0 quarts with filter.
Can I use synthetic oil in my 1985 GMC Rally?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1985 GMC Rally. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.