1984 Oldsmobile Custom Cruiser Oil Type & Capacity
The 1984 Oldsmobile Custom Cruiser oil type depends on the engine: the 5.0 Y, 200-4R/MW9 takes 5W-30 (4.0 quarts with filter); the 5.0 Y, 200C/MV9 takes 5W-30 (4.0 quarts with filter); the 5.0 Y, 250C/M31 takes 5W-30 (4.0 quarts with filter); the 5.7 N, 200-4R/MW9 takes 10W-30 (7.0 quarts with filter); the 5.7 N, 200C/MV9 takes 10W-30 (7.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 5.0 Y, 200-4R/MW9: 5W-30, 4.0 quarts with filter
- 5.0 Y, 200C/MV9: 5W-30, 4.0 quarts with filter
- 5.0 Y, 250C/M31: 5W-30, 4.0 quarts with filter
- 5.7 N, 200-4R/MW9: 10W-30, 7.0 quarts with filter
- 5.7 N, 200C/MV9: 10W-30, 7.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 5.0 Y, 200-4R/MW9 — 5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| 5.0 Y, 200C/MV9 — 5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| 5.0 Y, 250C/M31 — 5.0L Eng | SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| 5.7 N, 200-4R/MW9 — 5.7L Eng | SAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F) | 7.00 QTS. | — | — |
| 5.7 N, 200C/MV9 — 5.7L Eng | SAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F) | 7.00 QTS. | — | — |
Buy the right oil
Buy 5W-30 motor oil on AmazonBuy 10W-30 motor oil on Amazon1984 Oldsmobile Custom Cruiser oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Custom Cruiser
1984 Oldsmobile Custom Cruiser factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
N/A (N/A) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1984 Oldsmobile Custom Cruiser take?
It depends on the engine: 5.0 Y, 200-4R/MW9 uses 5W-30; 5.0 Y, 200C/MV9 uses 5W-30; 5.0 Y, 250C/M31 uses 5W-30; 5.7 N, 200-4R/MW9 uses 10W-30; 5.7 N, 200C/MV9 uses 10W-30.
How much oil does a 1984 Oldsmobile Custom Cruiser take?
Capacity depends on the engine: 5.0 Y, 200-4R/MW9 holds 4.0 quarts with filter; 5.0 Y, 200C/MV9 holds 4.0 quarts with filter; 5.0 Y, 250C/M31 holds 4.0 quarts with filter; 5.7 N, 200-4R/MW9 holds 7.0 quarts with filter; 5.7 N, 200C/MV9 holds 7.0 quarts with filter.
Can I use synthetic oil in my 1984 Oldsmobile Custom Cruiser?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1984 Oldsmobile Custom Cruiser. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.