1983 Oldsmobile Omega Oil Type & Capacity
The 1983 Oldsmobile Omega oil type depends on the engine: the Base, 2D Coupe, 2.5 R, Automatic takes 5W-30 (3.0 quarts qt with filter); the Base, 2D Coupe, 2.5 R, Standard takes 5W-30 (3.0 quarts qt with filter); the Base, 2D Coupe, 2.8 X, Automatic takes 5W-30 (4.0 quarts qt with filter); the Base, 2D Coupe, 2.8 X, Standard takes 5W-30 (4.0 quarts qt with filter); the Base, 2D Coupe, 2.8 Z, Automatic takes 5W-30 (4.0 quarts qt with filter); the Base, 2D Coupe, 2.8 Z, Standard takes 5W-30 (4.0 quarts qt with filter); the Base, 4D Sedan, 2.5 R, Automatic takes 5W-30 (3.0 quarts qt with filter); the Base, 4D Sedan, 2.5 R, Standard takes 5W-30 (3.0 quarts qt with filter); the Base, 4D Sedan, 2.8 X, Automatic takes 5W-30 (4.0 quarts qt with filter); the Base, 4D Sedan, 2.8 X, Standard takes 5W-30 (4.0 quarts qt with filter); the Base, 4D Sedan, 2.8 Z, Automatic takes 5W-30 (4.0 quarts qt with filter); the Base, 4D Sedan, 2.8 Z, Standard takes 5W-30 (4.0 quarts qt with filter); the Brougham, 2D Coupe, 2.5 R, Automatic takes 5W-30 (3.0 quarts qt with filter); the Brougham, 2D Coupe, 2.5 R, Standard takes 5W-30 (3.0 quarts qt with filter); the Brougham, 2D Coupe, 2.8 X, Automatic takes 5W-30 (4.0 quarts qt with filter); the Brougham, 2D Coupe, 2.8 X, Standard takes 5W-30 (4.0 quarts qt with filter); the Brougham, 2D Coupe, 2.8 Z, Automatic takes 5W-30 (4.0 quarts qt with filter); the Brougham, 2D Coupe, 2.8 Z, Standard takes 5W-30 (4.0 quarts qt with filter); the Brougham, 4D Sedan, 2.5 R, Automatic takes 5W-30 (3.0 quarts qt with filter); the Brougham, 4D Sedan, 2.5 R, Standard takes 5W-30 (3.0 quarts qt with filter); the Brougham, 4D Sedan, 2.8 X, Automatic takes 5W-30 (4.0 quarts qt with filter); the Brougham, 4D Sedan, 2.8 X, Standard takes 5W-30 (4.0 quarts qt with filter); the Brougham, 4D Sedan, 2.8 Z, Automatic takes 5W-30 (4.0 quarts qt with filter); the Brougham, 4D Sedan, 2.8 Z, Standard takes 5W-30 (4.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Base, 2D Coupe, 2.5 R, Automatic: 5W-30, 3.0 quarts with filter
- Base, 2D Coupe, 2.5 R, Standard: 5W-30, 3.0 quarts with filter
- Base, 2D Coupe, 2.8 X, Automatic: 5W-30, 4.0 quarts with filter
- Base, 2D Coupe, 2.8 X, Standard: 5W-30, 4.0 quarts with filter
- Base, 2D Coupe, 2.8 Z, Automatic: 5W-30, 4.0 quarts with filter
- Base, 2D Coupe, 2.8 Z, Standard: 5W-30, 4.0 quarts with filter
- Base, 4D Sedan, 2.5 R, Automatic: 5W-30, 3.0 quarts with filter
- Base, 4D Sedan, 2.5 R, Standard: 5W-30, 3.0 quarts with filter
- Base, 4D Sedan, 2.8 X, Automatic: 5W-30, 4.0 quarts with filter
- Base, 4D Sedan, 2.8 X, Standard: 5W-30, 4.0 quarts with filter
- Base, 4D Sedan, 2.8 Z, Automatic: 5W-30, 4.0 quarts with filter
- Base, 4D Sedan, 2.8 Z, Standard: 5W-30, 4.0 quarts with filter
- Brougham, 2D Coupe, 2.5 R, Automatic: 5W-30, 3.0 quarts with filter
- Brougham, 2D Coupe, 2.5 R, Standard: 5W-30, 3.0 quarts with filter
- Brougham, 2D Coupe, 2.8 X, Automatic: 5W-30, 4.0 quarts with filter
- Brougham, 2D Coupe, 2.8 X, Standard: 5W-30, 4.0 quarts with filter
- Brougham, 2D Coupe, 2.8 Z, Automatic: 5W-30, 4.0 quarts with filter
- Brougham, 2D Coupe, 2.8 Z, Standard: 5W-30, 4.0 quarts with filter
- Brougham, 4D Sedan, 2.5 R, Automatic: 5W-30, 3.0 quarts with filter
- Brougham, 4D Sedan, 2.5 R, Standard: 5W-30, 3.0 quarts with filter
- Brougham, 4D Sedan, 2.8 X, Automatic: 5W-30, 4.0 quarts with filter
- Brougham, 4D Sedan, 2.8 X, Standard: 5W-30, 4.0 quarts with filter
- Brougham, 4D Sedan, 2.8 Z, Automatic: 5W-30, 4.0 quarts with filter
- Brougham, 4D Sedan, 2.8 Z, Standard: 5W-30, 4.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, 2D Coupe, 2.5 R, Automatic — 2.5L 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) | 3.00 QTS. | — | — |
| Base, 2D Coupe, 2.5 R, Standard — 2.5L 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) | 3.00 QTS. | — | — |
| Base, 2D Coupe, 2.8 X, Automatic — 2.8L 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. | — | — |
| Base, 2D Coupe, 2.8 X, Standard — 2.8L 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. | — | — |
| Base, 2D Coupe, 2.8 Z, Automatic — 2.8L 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. | — | — |
| Base, 2D Coupe, 2.8 Z, Standard — 2.8L 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. | — | — |
| Base, 4D Sedan, 2.5 R, Automatic — 2.5L 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) | 3.00 QTS. | — | — |
| Base, 4D Sedan, 2.5 R, Standard — 2.5L 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) | 3.00 QTS. | — | — |
| Base, 4D Sedan, 2.8 X, Automatic — 2.8L 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. | — | — |
| Base, 4D Sedan, 2.8 X, Standard — 2.8L 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. | — | — |
| Base, 4D Sedan, 2.8 Z, Automatic — 2.8L 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. | — | — |
| Base, 4D Sedan, 2.8 Z, Standard — 2.8L 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. | — | — |
| Brougham, 2D Coupe, 2.5 R, Automatic — 2.5L 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) | 3.00 QTS. | — | — |
| Brougham, 2D Coupe, 2.5 R, Standard — 2.5L 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) | 3.00 QTS. | — | — |
| Brougham, 2D Coupe, 2.8 X, Automatic — 2.8L 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. | — | — |
| Brougham, 2D Coupe, 2.8 X, Standard — 2.8L 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. | — | — |
| Brougham, 2D Coupe, 2.8 Z, Automatic — 2.8L 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. | — | — |
| Brougham, 2D Coupe, 2.8 Z, Standard — 2.8L 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. | — | — |
| Brougham, 4D Sedan, 2.5 R, Automatic — 2.5L 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) | 3.00 QTS. | — | — |
| Brougham, 4D Sedan, 2.5 R, Standard — 2.5L 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) | 3.00 QTS. | — | — |
| Brougham, 4D Sedan, 2.8 X, Automatic — 2.8L 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. | — | — |
| Brougham, 4D Sedan, 2.8 X, Standard — 2.8L 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. | — | — |
| Brougham, 4D Sedan, 2.8 Z, Automatic — 2.8L 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. | — | — |
| Brougham, 4D Sedan, 2.8 Z, Standard — 2.8L 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. | — | — |
More factory specs & repair guides for your Omega
🛞 1983 Oldsmobile Omega Tire Size & Pressure →🌧️ 1983 Oldsmobile Omega Wiper Blade Sizes →💡 1983 Oldsmobile Omega Light Bulb Sizes →📖 1983 Oldsmobile Omega Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
9.5 quarts (8.99 L) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1983 Oldsmobile Omega take?
It depends on the engine: Base, 2D Coupe, 2.5 R, Automatic uses 5W-30; Base, 2D Coupe, 2.5 R, Standard uses 5W-30; Base, 2D Coupe, 2.8 X, Automatic uses 5W-30; Base, 2D Coupe, 2.8 X, Standard uses 5W-30; Base, 2D Coupe, 2.8 Z, Automatic uses 5W-30; Base, 2D Coupe, 2.8 Z, Standard uses 5W-30; Base, 4D Sedan, 2.5 R, Automatic uses 5W-30; Base, 4D Sedan, 2.5 R, Standard uses 5W-30; Base, 4D Sedan, 2.8 X, Automatic uses 5W-30; Base, 4D Sedan, 2.8 X, Standard uses 5W-30; Base, 4D Sedan, 2.8 Z, Automatic uses 5W-30; Base, 4D Sedan, 2.8 Z, Standard uses 5W-30; Brougham, 2D Coupe, 2.5 R, Automatic uses 5W-30; Brougham, 2D Coupe, 2.5 R, Standard uses 5W-30; Brougham, 2D Coupe, 2.8 X, Automatic uses 5W-30; Brougham, 2D Coupe, 2.8 X, Standard uses 5W-30; Brougham, 2D Coupe, 2.8 Z, Automatic uses 5W-30; Brougham, 2D Coupe, 2.8 Z, Standard uses 5W-30; Brougham, 4D Sedan, 2.5 R, Automatic uses 5W-30; Brougham, 4D Sedan, 2.5 R, Standard uses 5W-30; Brougham, 4D Sedan, 2.8 X, Automatic uses 5W-30; Brougham, 4D Sedan, 2.8 X, Standard uses 5W-30; Brougham, 4D Sedan, 2.8 Z, Automatic uses 5W-30; Brougham, 4D Sedan, 2.8 Z, Standard uses 5W-30.
What is the oil capacity of a 1983 Oldsmobile Omega?
Oil capacity depends on the engine: Base, 2D Coupe, 2.5 R, Automatic holds 3.0 quarts with filter; Base, 2D Coupe, 2.5 R, Standard holds 3.0 quarts with filter; Base, 2D Coupe, 2.8 X, Automatic holds 4.0 quarts with filter; Base, 2D Coupe, 2.8 X, Standard holds 4.0 quarts with filter; Base, 2D Coupe, 2.8 Z, Automatic holds 4.0 quarts with filter; Base, 2D Coupe, 2.8 Z, Standard holds 4.0 quarts with filter; Base, 4D Sedan, 2.5 R, Automatic holds 3.0 quarts with filter; Base, 4D Sedan, 2.5 R, Standard holds 3.0 quarts with filter; Base, 4D Sedan, 2.8 X, Automatic holds 4.0 quarts with filter; Base, 4D Sedan, 2.8 X, Standard holds 4.0 quarts with filter; Base, 4D Sedan, 2.8 Z, Automatic holds 4.0 quarts with filter; Base, 4D Sedan, 2.8 Z, Standard holds 4.0 quarts with filter; Brougham, 2D Coupe, 2.5 R, Automatic holds 3.0 quarts with filter; Brougham, 2D Coupe, 2.5 R, Standard holds 3.0 quarts with filter; Brougham, 2D Coupe, 2.8 X, Automatic holds 4.0 quarts with filter; Brougham, 2D Coupe, 2.8 X, Standard holds 4.0 quarts with filter; Brougham, 2D Coupe, 2.8 Z, Automatic holds 4.0 quarts with filter; Brougham, 2D Coupe, 2.8 Z, Standard holds 4.0 quarts with filter; Brougham, 4D Sedan, 2.5 R, Automatic holds 3.0 quarts with filter; Brougham, 4D Sedan, 2.5 R, Standard holds 3.0 quarts with filter; Brougham, 4D Sedan, 2.8 X, Automatic holds 4.0 quarts with filter; Brougham, 4D Sedan, 2.8 X, Standard holds 4.0 quarts with filter; Brougham, 4D Sedan, 2.8 Z, Automatic holds 4.0 quarts with filter; Brougham, 4D Sedan, 2.8 Z, Standard holds 4.0 quarts with filter.
How often should I change the oil in my 1983 Oldsmobile Omega?
Most 1983 Oldsmobile Omega 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 — Oldsmobile recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1983 Oldsmobile Omega?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1983 Oldsmobile Omega. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.