1990 Chevrolet Chevy Van Oil Type & Capacity
The 1990 Chevrolet Chevy Van oil type depends on the engine: the G10, 4.3 Z, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G10, 4.3 Z, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G10, 4.3 Z, 400/M40 takes 5W-30 (5.0 quarts with filter); the G10, 4.3 Z, 475/M40 takes 5W-30 (5.0 quarts with filter); the G10, 4.3 Z, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G10, 4.3 Z, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G10, 5.0 H, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G10, 5.0 H, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G10, 5.0 H, 400/M40 takes 5W-30 (5.0 quarts with filter); the G10, 5.0 H, 475/M40 takes 5W-30 (5.0 quarts with filter); the G10, 5.0 H, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G10, 5.0 H, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G20, 4.3 Z, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G20, 4.3 Z, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G20, 4.3 Z, 400/M40 takes 5W-30 (5.0 quarts with filter); the G20, 4.3 Z, 475/M40 takes 5W-30 (5.0 quarts with filter); the G20, 4.3 Z, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G20, 4.3 Z, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G20, 5.0 H, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G20, 5.0 H, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G20, 5.0 H, 400/M40 takes 5W-30 (5.0 quarts with filter); the G20, 5.0 H, 475/M40 takes 5W-30 (5.0 quarts with filter); the G20, 5.0 H, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G20, 5.0 H, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G20, 5.7 K, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G20, 5.7 K, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G20, 6.2 C, 4L60/MD8 takes 5W-30 (7.0 quarts with filter); the G20, 6.2 C, 700R4/MD8 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo Extended, 5.7 K, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo Extended, 5.7 K, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo Extended, 5.7 K, 400/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo Extended, 5.7 K, 475/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo Extended, 6.2 J, 3L80-HD/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo Extended, 6.2 J, 3L80/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo Extended, 6.2 J, 400/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo Extended, 6.2 J, 475/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo Extended, 7.4 N, 3L80-HD/M40 takes 5W-30 (6.0 quarts with filter); the G30, Van Cargo Extended, 7.4 N, 3L80/M40 takes 5W-30 (6.0 quarts with filter); the G30, Van Cargo Extended, 7.4 N, 400/M40 takes 5W-30 (6.0 quarts with filter); the G30, Van Cargo Extended, 7.4 N, 475/M40 takes 5W-30 (6.0 quarts with filter); the G30, Van Cargo, 4.3 Z, 4L60/MD8 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo, 4.3 Z, 700R4/MD8 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo, 5.7 K, 3L80-HD/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo, 5.7 K, 3L80/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo, 5.7 K, 400/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo, 5.7 K, 475/M40 takes 5W-30 (5.0 quarts with filter); the G30, Van Cargo, 6.2 J, 3L80-HD/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo, 6.2 J, 3L80/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo, 6.2 J, 400/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo, 6.2 J, 475/M40 takes 5W-30 (7.0 quarts with filter); the G30, Van Cargo, 7.4 N, 3L80-HD/M40 takes 5W-30 (6.0 quarts with filter); the G30, Van Cargo, 7.4 N, 3L80/M40 takes 5W-30 (6.0 quarts with filter); the G30, Van Cargo, 7.4 N, 400/M40 takes 5W-30 (6.0 quarts with filter); the G30, Van Cargo, 7.4 N, 475/M40 takes 5W-30 (6.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- G10, 4.3 Z, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G10, 4.3 Z, 3L80/M40: 5W-30, 5.0 quarts with filter
- G10, 4.3 Z, 400/M40: 5W-30, 5.0 quarts with filter
- G10, 4.3 Z, 475/M40: 5W-30, 5.0 quarts with filter
- G10, 4.3 Z, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G10, 4.3 Z, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G10, 5.0 H, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G10, 5.0 H, 3L80/M40: 5W-30, 5.0 quarts with filter
- G10, 5.0 H, 400/M40: 5W-30, 5.0 quarts with filter
- G10, 5.0 H, 475/M40: 5W-30, 5.0 quarts with filter
- G10, 5.0 H, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G10, 5.0 H, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G20, 4.3 Z, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G20, 4.3 Z, 3L80/M40: 5W-30, 5.0 quarts with filter
- G20, 4.3 Z, 400/M40: 5W-30, 5.0 quarts with filter
- G20, 4.3 Z, 475/M40: 5W-30, 5.0 quarts with filter
- G20, 4.3 Z, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G20, 4.3 Z, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G20, 5.0 H, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G20, 5.0 H, 3L80/M40: 5W-30, 5.0 quarts with filter
- G20, 5.0 H, 400/M40: 5W-30, 5.0 quarts with filter
- G20, 5.0 H, 475/M40: 5W-30, 5.0 quarts with filter
- G20, 5.0 H, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G20, 5.0 H, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G20, 5.7 K, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G20, 5.7 K, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G20, 6.2 C, 4L60/MD8: 5W-30, 7.0 quarts with filter
- G20, 6.2 C, 700R4/MD8: 5W-30, 7.0 quarts with filter
- G30, Van Cargo Extended, 5.7 K, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo Extended, 5.7 K, 3L80/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo Extended, 5.7 K, 400/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo Extended, 5.7 K, 475/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo Extended, 6.2 J, 3L80-HD/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo Extended, 6.2 J, 3L80/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo Extended, 6.2 J, 400/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo Extended, 6.2 J, 475/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo Extended, 7.4 N, 3L80-HD/M40: 5W-30, 6.0 quarts with filter
- G30, Van Cargo Extended, 7.4 N, 3L80/M40: 5W-30, 6.0 quarts with filter
- G30, Van Cargo Extended, 7.4 N, 400/M40: 5W-30, 6.0 quarts with filter
- G30, Van Cargo Extended, 7.4 N, 475/M40: 5W-30, 6.0 quarts with filter
- G30, Van Cargo, 4.3 Z, 4L60/MD8: 5W-30, 5.0 quarts with filter
- G30, Van Cargo, 4.3 Z, 700R4/MD8: 5W-30, 5.0 quarts with filter
- G30, Van Cargo, 5.7 K, 3L80-HD/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo, 5.7 K, 3L80/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo, 5.7 K, 400/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo, 5.7 K, 475/M40: 5W-30, 5.0 quarts with filter
- G30, Van Cargo, 6.2 J, 3L80-HD/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo, 6.2 J, 3L80/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo, 6.2 J, 400/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo, 6.2 J, 475/M40: 5W-30, 7.0 quarts with filter
- G30, Van Cargo, 7.4 N, 3L80-HD/M40: 5W-30, 6.0 quarts with filter
- G30, Van Cargo, 7.4 N, 3L80/M40: 5W-30, 6.0 quarts with filter
- G30, Van Cargo, 7.4 N, 400/M40: 5W-30, 6.0 quarts with filter
- G30, Van Cargo, 7.4 N, 475/M40: 5W-30, 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| G10, 4.3 Z, 3L80-HD/M40 — G10,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G10, 4.3 Z, 3L80-HD/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 4.3 Z, 3L80/M40 — G10,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G10, 4.3 Z, 3L80/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 4.3 Z, 400/M40 — G10,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G10, 4.3 Z, 400/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 4.3 Z, 475/M40 — G10,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G10, 4.3 Z, 475/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 4.3 Z, 4L60/MD8 — G10,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G10, 4.3 Z, 4L60/MD8 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 4.3 Z, 700R4/MD8 — G10,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G10, 4.3 Z, 700R4/MD8 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 5.0 H, 3L80-HD/M40 — G10,5.0L 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. | — |
| G10, 5.0 H, 3L80-HD/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 5.0 H, 3L80/M40 — G10,5.0L 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. | — |
| G10, 5.0 H, 3L80/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 5.0 H, 400/M40 — G10,5.0L 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. | — |
| G10, 5.0 H, 400/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 5.0 H, 475/M40 — G10,5.0L 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. | — |
| G10, 5.0 H, 475/M40 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 5.0 H, 4L60/MD8 — G10,5.0L 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. | — |
| G10, 5.0 H, 4L60/MD8 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G10, 5.0 H, 700R4/MD8 — G10,5.0L 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. | — |
| G10, 5.0 H, 700R4/MD8 — G10 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 4.3 Z, 3L80-HD/M40 — G20,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G20, 4.3 Z, 3L80-HD/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 4.3 Z, 3L80/M40 — G20,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G20, 4.3 Z, 3L80/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 4.3 Z, 400/M40 — G20,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G20, 4.3 Z, 400/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 4.3 Z, 475/M40 — G20,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G20, 4.3 Z, 475/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 4.3 Z, 4L60/MD8 — G20,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G20, 4.3 Z, 4L60/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 4.3 Z, 700R4/MD8 — G20,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G20, 4.3 Z, 700R4/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.0 H, 3L80-HD/M40 — G20,5.0L 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. | — |
| G20, 5.0 H, 3L80-HD/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.0 H, 3L80/M40 — G20,5.0L 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. | — |
| G20, 5.0 H, 3L80/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.0 H, 400/M40 — G20,5.0L 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. | — |
| G20, 5.0 H, 400/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.0 H, 475/M40 — G20,5.0L 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. | — |
| G20, 5.0 H, 475/M40 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.0 H, 4L60/MD8 — G20,5.0L 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. | — |
| G20, 5.0 H, 4L60/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.0 H, 700R4/MD8 — G20,5.0L 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. | — |
| G20, 5.0 H, 700R4/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.7 K, 4L60/MD8 — G20,5.7L 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. | — |
| G20, 5.7 K, 4L60/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 5.7 K, 700R4/MD8 — G20,5.7L 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. | — |
| G20, 5.7 K, 700R4/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 6.2 C, 4L60/MD8 — G20,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G20, 6.2 C, 4L60/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G20, 6.2 C, 700R4/MD8 — G20,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G20, 6.2 C, 700R4/MD8 — G20 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 5.7 K, 3L80-HD/M40 — G30,5.7L 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. | — |
| G30, Van Cargo Extended, 5.7 K, 3L80-HD/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 5.7 K, 3L80/M40 — G30,5.7L 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. | — |
| G30, Van Cargo Extended, 5.7 K, 3L80/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 5.7 K, 400/M40 — G30,5.7L 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. | — |
| G30, Van Cargo Extended, 5.7 K, 400/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 5.7 K, 475/M40 — G30,5.7L 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. | — |
| G30, Van Cargo Extended, 5.7 K, 475/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 3L80-HD/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 3L80-HD/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 3L80/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 3L80/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 400/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 400/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 475/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo Extended, 6.2 J, 475/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 7.4 N, 3L80-HD/M40 — G30,7.4L 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. | — |
| G30, Van Cargo Extended, 7.4 N, 3L80-HD/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 7.4 N, 3L80/M40 — G30,7.4L 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. | — |
| G30, Van Cargo Extended, 7.4 N, 3L80/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 7.4 N, 400/M40 — G30,7.4L 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. | — |
| G30, Van Cargo Extended, 7.4 N, 400/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo Extended, 7.4 N, 475/M40 — G30,7.4L 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. | — |
| G30, Van Cargo Extended, 7.4 N, 475/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 4.3 Z, 4L60/MD8 — G30,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G30, Van Cargo, 4.3 Z, 4L60/MD8 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 4.3 Z, 700R4/MD8 — G30,4.3L Eng | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| G30, Van Cargo, 4.3 Z, 700R4/MD8 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 5.7 K, 3L80-HD/M40 — G30,5.7L 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. | — |
| G30, Van Cargo, 5.7 K, 3L80-HD/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 5.7 K, 3L80/M40 — G30,5.7L 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. | — |
| G30, Van Cargo, 5.7 K, 3L80/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 5.7 K, 400/M40 — G30,5.7L 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. | — |
| G30, Van Cargo, 5.7 K, 400/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 5.7 K, 475/M40 — G30,5.7L 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. | — |
| G30, Van Cargo, 5.7 K, 475/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 3L80-HD/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 3L80-HD/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 3L80/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 3L80/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 400/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 400/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 475/M40 — G30,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 10W-30 (Preferred) (0Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| G30, Van Cargo, 6.2 J, 475/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 7.4 N, 3L80-HD/M40 — G30,7.4L 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. | — |
| G30, Van Cargo, 7.4 N, 3L80-HD/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 7.4 N, 3L80/M40 — G30,7.4L 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. | — |
| G30, Van Cargo, 7.4 N, 3L80/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 7.4 N, 400/M40 — G30,7.4L 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. | — |
| G30, Van Cargo, 7.4 N, 400/M40 — G30 | API - SAE 5W-30 (Below -20Deg.F to Above 100Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| G30, Van Cargo, 7.4 N, 475/M40 — G30,7.4L 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. | — |
| G30, Van Cargo, 7.4 N, 475/M40 — G30 | 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 Chevrolet Chevy Van oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Chevy Van
1990 Chevrolet Chevy Van 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.
Frequently asked questions
What type of oil does a 1990 Chevrolet Chevy Van take?
It depends on the engine: G10, 4.3 Z, 3L80-HD/M40 uses 5W-30; G10, 4.3 Z, 3L80/M40 uses 5W-30; G10, 4.3 Z, 400/M40 uses 5W-30; G10, 4.3 Z, 475/M40 uses 5W-30; G10, 4.3 Z, 4L60/MD8 uses 5W-30; G10, 4.3 Z, 700R4/MD8 uses 5W-30; G10, 5.0 H, 3L80-HD/M40 uses 5W-30; G10, 5.0 H, 3L80/M40 uses 5W-30; G10, 5.0 H, 400/M40 uses 5W-30; G10, 5.0 H, 475/M40 uses 5W-30; G10, 5.0 H, 4L60/MD8 uses 5W-30; G10, 5.0 H, 700R4/MD8 uses 5W-30; G20, 4.3 Z, 3L80-HD/M40 uses 5W-30; G20, 4.3 Z, 3L80/M40 uses 5W-30; G20, 4.3 Z, 400/M40 uses 5W-30; G20, 4.3 Z, 475/M40 uses 5W-30; G20, 4.3 Z, 4L60/MD8 uses 5W-30; G20, 4.3 Z, 700R4/MD8 uses 5W-30; G20, 5.0 H, 3L80-HD/M40 uses 5W-30; G20, 5.0 H, 3L80/M40 uses 5W-30; G20, 5.0 H, 400/M40 uses 5W-30; G20, 5.0 H, 475/M40 uses 5W-30; G20, 5.0 H, 4L60/MD8 uses 5W-30; G20, 5.0 H, 700R4/MD8 uses 5W-30; G20, 5.7 K, 4L60/MD8 uses 5W-30; G20, 5.7 K, 700R4/MD8 uses 5W-30; G20, 6.2 C, 4L60/MD8 uses 5W-30; G20, 6.2 C, 700R4/MD8 uses 5W-30; G30, Van Cargo Extended, 5.7 K, 3L80-HD/M40 uses 5W-30; G30, Van Cargo Extended, 5.7 K, 3L80/M40 uses 5W-30; G30, Van Cargo Extended, 5.7 K, 400/M40 uses 5W-30; G30, Van Cargo Extended, 5.7 K, 475/M40 uses 5W-30; G30, Van Cargo Extended, 6.2 J, 3L80-HD/M40 uses 5W-30; G30, Van Cargo Extended, 6.2 J, 3L80/M40 uses 5W-30; G30, Van Cargo Extended, 6.2 J, 400/M40 uses 5W-30; G30, Van Cargo Extended, 6.2 J, 475/M40 uses 5W-30; G30, Van Cargo Extended, 7.4 N, 3L80-HD/M40 uses 5W-30; G30, Van Cargo Extended, 7.4 N, 3L80/M40 uses 5W-30; G30, Van Cargo Extended, 7.4 N, 400/M40 uses 5W-30; G30, Van Cargo Extended, 7.4 N, 475/M40 uses 5W-30; G30, Van Cargo, 4.3 Z, 4L60/MD8 uses 5W-30; G30, Van Cargo, 4.3 Z, 700R4/MD8 uses 5W-30; G30, Van Cargo, 5.7 K, 3L80-HD/M40 uses 5W-30; G30, Van Cargo, 5.7 K, 3L80/M40 uses 5W-30; G30, Van Cargo, 5.7 K, 400/M40 uses 5W-30; G30, Van Cargo, 5.7 K, 475/M40 uses 5W-30; G30, Van Cargo, 6.2 J, 3L80-HD/M40 uses 5W-30; G30, Van Cargo, 6.2 J, 3L80/M40 uses 5W-30; G30, Van Cargo, 6.2 J, 400/M40 uses 5W-30; G30, Van Cargo, 6.2 J, 475/M40 uses 5W-30; G30, Van Cargo, 7.4 N, 3L80-HD/M40 uses 5W-30; G30, Van Cargo, 7.4 N, 3L80/M40 uses 5W-30; G30, Van Cargo, 7.4 N, 400/M40 uses 5W-30; G30, Van Cargo, 7.4 N, 475/M40 uses 5W-30.
How much oil does a 1990 Chevrolet Chevy Van take?
Capacity depends on the engine: G10, 4.3 Z, 3L80-HD/M40 holds 5.0 quarts with filter; G10, 4.3 Z, 3L80/M40 holds 5.0 quarts with filter; G10, 4.3 Z, 400/M40 holds 5.0 quarts with filter; G10, 4.3 Z, 475/M40 holds 5.0 quarts with filter; G10, 4.3 Z, 4L60/MD8 holds 5.0 quarts with filter; G10, 4.3 Z, 700R4/MD8 holds 5.0 quarts with filter; G10, 5.0 H, 3L80-HD/M40 holds 5.0 quarts with filter; G10, 5.0 H, 3L80/M40 holds 5.0 quarts with filter; G10, 5.0 H, 400/M40 holds 5.0 quarts with filter; G10, 5.0 H, 475/M40 holds 5.0 quarts with filter; G10, 5.0 H, 4L60/MD8 holds 5.0 quarts with filter; G10, 5.0 H, 700R4/MD8 holds 5.0 quarts with filter; G20, 4.3 Z, 3L80-HD/M40 holds 5.0 quarts with filter; G20, 4.3 Z, 3L80/M40 holds 5.0 quarts with filter; G20, 4.3 Z, 400/M40 holds 5.0 quarts with filter; G20, 4.3 Z, 475/M40 holds 5.0 quarts with filter; G20, 4.3 Z, 4L60/MD8 holds 5.0 quarts with filter; G20, 4.3 Z, 700R4/MD8 holds 5.0 quarts with filter; G20, 5.0 H, 3L80-HD/M40 holds 5.0 quarts with filter; G20, 5.0 H, 3L80/M40 holds 5.0 quarts with filter; G20, 5.0 H, 400/M40 holds 5.0 quarts with filter; G20, 5.0 H, 475/M40 holds 5.0 quarts with filter; G20, 5.0 H, 4L60/MD8 holds 5.0 quarts with filter; G20, 5.0 H, 700R4/MD8 holds 5.0 quarts with filter; G20, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; G20, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; G20, 6.2 C, 4L60/MD8 holds 7.0 quarts with filter; G20, 6.2 C, 700R4/MD8 holds 7.0 quarts with filter; G30, Van Cargo Extended, 5.7 K, 3L80-HD/M40 holds 5.0 quarts with filter; G30, Van Cargo Extended, 5.7 K, 3L80/M40 holds 5.0 quarts with filter; G30, Van Cargo Extended, 5.7 K, 400/M40 holds 5.0 quarts with filter; G30, Van Cargo Extended, 5.7 K, 475/M40 holds 5.0 quarts with filter; G30, Van Cargo Extended, 6.2 J, 3L80-HD/M40 holds 7.0 quarts with filter; G30, Van Cargo Extended, 6.2 J, 3L80/M40 holds 7.0 quarts with filter; G30, Van Cargo Extended, 6.2 J, 400/M40 holds 7.0 quarts with filter; G30, Van Cargo Extended, 6.2 J, 475/M40 holds 7.0 quarts with filter; G30, Van Cargo Extended, 7.4 N, 3L80-HD/M40 holds 6.0 quarts with filter; G30, Van Cargo Extended, 7.4 N, 3L80/M40 holds 6.0 quarts with filter; G30, Van Cargo Extended, 7.4 N, 400/M40 holds 6.0 quarts with filter; G30, Van Cargo Extended, 7.4 N, 475/M40 holds 6.0 quarts with filter; G30, Van Cargo, 4.3 Z, 4L60/MD8 holds 5.0 quarts with filter; G30, Van Cargo, 4.3 Z, 700R4/MD8 holds 5.0 quarts with filter; G30, Van Cargo, 5.7 K, 3L80-HD/M40 holds 5.0 quarts with filter; G30, Van Cargo, 5.7 K, 3L80/M40 holds 5.0 quarts with filter; G30, Van Cargo, 5.7 K, 400/M40 holds 5.0 quarts with filter; G30, Van Cargo, 5.7 K, 475/M40 holds 5.0 quarts with filter; G30, Van Cargo, 6.2 J, 3L80-HD/M40 holds 7.0 quarts with filter; G30, Van Cargo, 6.2 J, 3L80/M40 holds 7.0 quarts with filter; G30, Van Cargo, 6.2 J, 400/M40 holds 7.0 quarts with filter; G30, Van Cargo, 6.2 J, 475/M40 holds 7.0 quarts with filter; G30, Van Cargo, 7.4 N, 3L80-HD/M40 holds 6.0 quarts with filter; G30, Van Cargo, 7.4 N, 3L80/M40 holds 6.0 quarts with filter; G30, Van Cargo, 7.4 N, 400/M40 holds 6.0 quarts with filter; G30, Van Cargo, 7.4 N, 475/M40 holds 6.0 quarts with filter.
Can I use synthetic oil in my 1990 Chevrolet Chevy Van?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Chevrolet Chevy Van. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.