1988 GMC Vandura Oil Type & Capacity
The 1988 GMC Vandura oil type depends on the engine: the G1500, 4.3 Z, Automatic, 400/M40 takes 5W-30 (5.0 quarts qt with filter); the G1500, 4.3 Z, Automatic, 475/M40 takes 5W-30 (5.0 quarts qt with filter); the G1500, 4.3 Z, Automatic, 700R4/MD8 takes 5W-30 (5.0 quarts qt with filter); the G1500, 4.3 Z, Standard takes 5W-30 (5.0 quarts qt with filter); the G1500, 5.0 H, Automatic, 400/M40 takes 5W-30 (5.0 quarts qt with filter); the G1500, 5.0 H, Automatic, 475/M40 takes 5W-30 (5.0 quarts qt with filter); the G1500, 5.0 H, Automatic, 700R4/MD8 takes 5W-30 (5.0 quarts qt with filter); the G1500, 5.0 H, Standard takes 5W-30 (5.0 quarts qt with filter); the G2500, 4.3 Z, Automatic, 400/M40 takes 5W-30 (5.0 quarts qt with filter); the G2500, 4.3 Z, Automatic, 475/M40 takes 5W-30 (5.0 quarts qt with filter); the G2500, 4.3 Z, Automatic, 700R4/MD8 takes 5W-30 (5.0 quarts qt with filter); the G2500, 4.3 Z, Standard takes 5W-30 (5.0 quarts qt with filter); the G2500, 5.0 H, Automatic, 400/M40 takes 5W-30 (5.0 quarts qt with filter); the G2500, 5.0 H, Automatic, 475/M40 takes 5W-30 (5.0 quarts qt with filter); the G2500, 5.0 H, Automatic, 700R4/MD8 takes 5W-30 (5.0 quarts qt with filter); the G2500, 5.0 H, Standard takes 5W-30 (5.0 quarts qt with filter); the G2500, 5.7 K takes 5W-30 (5.0 quarts qt with filter); the G2500, 6.2 C, Automatic takes 10W-30 (7.0 quarts qt with filter); the G2500, 6.2 C, Standard takes 10W-30 (7.0 quarts qt with filter); the G3500, 4.3 Z takes 5W-30 (5.0 quarts qt with filter); the G3500, 5.7 K, 400/M40 takes 5W-30 (5.0 quarts qt with filter); the G3500, 5.7 K, 475/M40 takes 5W-30 (5.0 quarts qt with filter); the G3500, 6.2 J, 400/M40 takes 10W-30 (7.0 quarts qt with filter); the G3500, 6.2 J, 475/M40 takes 10W-30 (7.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- G1500, 4.3 Z, Automatic, 400/M40: 5W-30, 5.0 quarts with filter
- G1500, 4.3 Z, Automatic, 475/M40: 5W-30, 5.0 quarts with filter
- G1500, 4.3 Z, Automatic, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G1500, 4.3 Z, Standard: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, Automatic, 400/M40: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, Automatic, 475/M40: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, Automatic, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G1500, 5.0 H, Standard: 5W-30, 5.0 quarts with filter
- G2500, 4.3 Z, Automatic, 400/M40: 5W-30, 5.0 quarts with filter
- G2500, 4.3 Z, Automatic, 475/M40: 5W-30, 5.0 quarts with filter
- G2500, 4.3 Z, Automatic, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 4.3 Z, Standard: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, Automatic, 400/M40: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, Automatic, 475/M40: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, Automatic, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G2500, 5.0 H, Standard: 5W-30, 5.0 quarts with filter
- G2500, 5.7 K: 5W-30, 5.0 quarts with filter
- G2500, 6.2 C, Automatic: 10W-30, 7.0 quarts with filter
- G2500, 6.2 C, Standard: 10W-30, 7.0 quarts with filter
- G3500, 4.3 Z: 5W-30, 5.0 quarts with filter
- G3500, 5.7 K, 400/M40: 5W-30, 5.0 quarts with filter
- G3500, 5.7 K, 475/M40: 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
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| G1500, 4.3 Z, Automatic, 400/M40 — G1500,4.3L 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, 4.3 Z, 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 Z, Automatic, 475/M40 — G1500,4.3L 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, 4.3 Z, 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 Z, Automatic, 700R4/MD8 — G1500,4.3L 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, 4.3 Z, 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 Z, Standard — G1500,4.3L 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, 4.3 Z, 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, Automatic, 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, 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, 5.0 H, Automatic, 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, 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, 5.0 H, Automatic, 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, 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, 5.0 H, Standard — 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, 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. | — | — |
| G2500, 4.3 Z, Automatic, 400/M40 — G2500,4.3L 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, 4.3 Z, 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 Z, Automatic, 475/M40 — G2500,4.3L 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, 4.3 Z, 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 Z, Automatic, 700R4/MD8 — G2500,4.3L 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, 4.3 Z, 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 Z, Standard — G2500,4.3L 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, 4.3 Z, 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, Automatic, 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, 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, 5.0 H, Automatic, 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, 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, 5.0 H, Automatic, 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, 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, 5.0 H, Standard — 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, 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, 5.7 K — 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 K — 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 — 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) | — | 6.00 QTS. | — |
| G2500, 6.2 C, Automatic — 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) | — | 6.00 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, 4.3 Z — G3500,4.3L 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, 4.3 Z — 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 K, 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 K, 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 K, 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 K, 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, 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) | — | 6.00 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) | — | 6.00 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. | — | — |
More factory specs & repair guides for your Vandura
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Coolant capacity
11.0 quarts (10.4 L) — 56/44 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1988 GMC Vandura take?
It depends on the engine: G1500, 4.3 Z, Automatic, 400/M40 uses 5W-30; G1500, 4.3 Z, Automatic, 475/M40 uses 5W-30; G1500, 4.3 Z, Automatic, 700R4/MD8 uses 5W-30; G1500, 4.3 Z, Standard uses 5W-30; G1500, 5.0 H, Automatic, 400/M40 uses 5W-30; G1500, 5.0 H, Automatic, 475/M40 uses 5W-30; G1500, 5.0 H, Automatic, 700R4/MD8 uses 5W-30; G1500, 5.0 H, Standard uses 5W-30; G2500, 4.3 Z, Automatic, 400/M40 uses 5W-30; G2500, 4.3 Z, Automatic, 475/M40 uses 5W-30; G2500, 4.3 Z, Automatic, 700R4/MD8 uses 5W-30; G2500, 4.3 Z, Standard uses 5W-30; G2500, 5.0 H, Automatic, 400/M40 uses 5W-30; G2500, 5.0 H, Automatic, 475/M40 uses 5W-30; G2500, 5.0 H, Automatic, 700R4/MD8 uses 5W-30; G2500, 5.0 H, Standard uses 5W-30; G2500, 5.7 K uses 5W-30; G2500, 6.2 C, Automatic uses 10W-30; G2500, 6.2 C, Standard uses 10W-30; G3500, 4.3 Z uses 5W-30; G3500, 5.7 K, 400/M40 uses 5W-30; G3500, 5.7 K, 475/M40 uses 5W-30; G3500, 6.2 J, 400/M40 uses 10W-30; G3500, 6.2 J, 475/M40 uses 10W-30.
What is the oil capacity of a 1988 GMC Vandura?
Oil capacity depends on the engine: G1500, 4.3 Z, Automatic, 400/M40 holds 5.0 quarts with filter; G1500, 4.3 Z, Automatic, 475/M40 holds 5.0 quarts with filter; G1500, 4.3 Z, Automatic, 700R4/MD8 holds 5.0 quarts with filter; G1500, 4.3 Z, Standard holds 5.0 quarts with filter; G1500, 5.0 H, Automatic, 400/M40 holds 5.0 quarts with filter; G1500, 5.0 H, Automatic, 475/M40 holds 5.0 quarts with filter; G1500, 5.0 H, Automatic, 700R4/MD8 holds 5.0 quarts with filter; G1500, 5.0 H, Standard holds 5.0 quarts with filter; G2500, 4.3 Z, Automatic, 400/M40 holds 5.0 quarts with filter; G2500, 4.3 Z, Automatic, 475/M40 holds 5.0 quarts with filter; G2500, 4.3 Z, Automatic, 700R4/MD8 holds 5.0 quarts with filter; G2500, 4.3 Z, Standard holds 5.0 quarts with filter; G2500, 5.0 H, Automatic, 400/M40 holds 5.0 quarts with filter; G2500, 5.0 H, Automatic, 475/M40 holds 5.0 quarts with filter; G2500, 5.0 H, Automatic, 700R4/MD8 holds 5.0 quarts with filter; G2500, 5.0 H, Standard holds 5.0 quarts with filter; G2500, 5.7 K holds 5.0 quarts with filter; G2500, 6.2 C, Automatic holds 7.0 quarts with filter; G2500, 6.2 C, Standard holds 7.0 quarts with filter; G3500, 4.3 Z holds 5.0 quarts with filter; G3500, 5.7 K, 400/M40 holds 5.0 quarts with filter; G3500, 5.7 K, 475/M40 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.
How often should I change the oil in my 1988 GMC Vandura?
Most 1988 GMC Vandura owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — GMC recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1988 GMC Vandura?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1988 GMC Vandura. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.