1984 Buick LeSabre Oil Type & Capacity
The 1984 Buick LeSabre oil type depends on the engine: the Custom, 2D Coupe, 3.8 A, 200C/MV9 takes 5W-30 (4.0 quarts qt with filter); the Custom, 2D Coupe, 3.8 A, 250C/M31 takes 5W-30 (4.0 quarts qt with filter); the Custom, 2D Coupe, 4.1 4 takes 5W-30 (4.0 quarts qt with filter); the Custom, 2D Coupe, 5.0 Y takes 5W-30 (4.0 quarts qt with filter); the Custom, 2D Coupe, 5.7 N takes 5W-30 (6.5 quarts qt with filter); the Custom, 4D Sedan, 3.8 A, 200C/MV9 takes 5W-30 (4.0 quarts qt with filter); the Custom, 4D Sedan, 3.8 A, 250C/M31 takes 5W-30 (4.0 quarts qt with filter); the Custom, 4D Sedan, 4.1 4 takes 5W-30 (4.0 quarts qt with filter); the Custom, 4D Sedan, 5.0 Y takes 5W-30 (4.0 quarts qt with filter); the Custom, 4D Sedan, 5.7 N takes 5W-30 (6.5 quarts qt with filter); the Limited, 2D Coupe, 3.8 A, 200C/MV9 takes 5W-30 (4.0 quarts qt with filter); the Limited, 2D Coupe, 3.8 A, 250C/M31 takes 5W-30 (4.0 quarts qt with filter); the Limited, 2D Coupe, 4.1 4 takes 5W-30 (4.0 quarts qt with filter); the Limited, 2D Coupe, 5.0 Y takes 5W-30 (4.0 quarts qt with filter); the Limited, 2D Coupe, 5.7 N takes 5W-30 (6.5 quarts qt with filter); the Limited, 4D Sedan, 3.8 A, 200C/MV9 takes 5W-30 (4.0 quarts qt with filter); the Limited, 4D Sedan, 3.8 A, 250C/M31 takes 5W-30 (4.0 quarts qt with filter); the Limited, 4D Sedan, 4.1 4 takes 5W-30 (4.0 quarts qt with filter); the Limited, 4D Sedan, 5.0 Y takes 5W-30 (4.0 quarts qt with filter); the Limited, 4D Sedan, 5.7 N takes 5W-30 (6.5 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Custom, 2D Coupe, 3.8 A, 200C/MV9: 5W-30, 4.0 quarts with filter
- Custom, 2D Coupe, 3.8 A, 250C/M31: 5W-30, 4.0 quarts with filter
- Custom, 2D Coupe, 4.1 4: 5W-30, 4.0 quarts with filter
- Custom, 2D Coupe, 5.0 Y: 5W-30, 4.0 quarts with filter
- Custom, 2D Coupe, 5.7 N: 5W-30, 6.5 quarts with filter
- Custom, 4D Sedan, 3.8 A, 200C/MV9: 5W-30, 4.0 quarts with filter
- Custom, 4D Sedan, 3.8 A, 250C/M31: 5W-30, 4.0 quarts with filter
- Custom, 4D Sedan, 4.1 4: 5W-30, 4.0 quarts with filter
- Custom, 4D Sedan, 5.0 Y: 5W-30, 4.0 quarts with filter
- Custom, 4D Sedan, 5.7 N: 5W-30, 6.5 quarts with filter
- Limited, 2D Coupe, 3.8 A, 200C/MV9: 5W-30, 4.0 quarts with filter
- Limited, 2D Coupe, 3.8 A, 250C/M31: 5W-30, 4.0 quarts with filter
- Limited, 2D Coupe, 4.1 4: 5W-30, 4.0 quarts with filter
- Limited, 2D Coupe, 5.0 Y: 5W-30, 4.0 quarts with filter
- Limited, 2D Coupe, 5.7 N: 5W-30, 6.5 quarts with filter
- Limited, 4D Sedan, 3.8 A, 200C/MV9: 5W-30, 4.0 quarts with filter
- Limited, 4D Sedan, 3.8 A, 250C/M31: 5W-30, 4.0 quarts with filter
- Limited, 4D Sedan, 4.1 4: 5W-30, 4.0 quarts with filter
- Limited, 4D Sedan, 5.0 Y: 5W-30, 4.0 quarts with filter
- Limited, 4D Sedan, 5.7 N: 5W-30, 6.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Custom, 2D Coupe, 3.8 A, 200C/MV9 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 2D Coupe, 3.8 A, 250C/M31 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 2D Coupe, 4.1 4 — 4.1L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 2D Coupe, 5.0 Y — 5.0L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 2D Coupe, 5.7 N — 5.7L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 6.50 QTS. | — | — |
| Custom, 4D Sedan, 3.8 A, 200C/MV9 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 4D Sedan, 3.8 A, 250C/M31 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 4D Sedan, 4.1 4 — 4.1L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 4D Sedan, 5.0 Y — 5.0L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Custom, 4D Sedan, 5.7 N — 5.7L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 6.50 QTS. | — | — |
| Limited, 2D Coupe, 3.8 A, 200C/MV9 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 2D Coupe, 3.8 A, 250C/M31 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 2D Coupe, 4.1 4 — 4.1L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 2D Coupe, 5.0 Y — 5.0L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 2D Coupe, 5.7 N — 5.7L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 6.50 QTS. | — | — |
| Limited, 4D Sedan, 3.8 A, 200C/MV9 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 4D Sedan, 3.8 A, 250C/M31 — 3.8L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 4D Sedan, 4.1 4 — 4.1L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 4D Sedan, 5.0 Y — 5.0L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Limited, 4D Sedan, 5.7 N — 5.7L Eng | SAE 5W-30 (60Deg.F to Below -20Deg.F) 10W-30 (Preferred) or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above100Deg.F), 20W-20, 20W-40 or 20W-50 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F) | 6.50 QTS. | — | — |
More factory specs & repair guides for your LeSabre
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Coolant capacity
13.0 quarts (12.3 L) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1984 Buick LeSabre take?
It depends on the engine: Custom, 2D Coupe, 3.8 A, 200C/MV9 uses 5W-30; Custom, 2D Coupe, 3.8 A, 250C/M31 uses 5W-30; Custom, 2D Coupe, 4.1 4 uses 5W-30; Custom, 2D Coupe, 5.0 Y uses 5W-30; Custom, 2D Coupe, 5.7 N uses 5W-30; Custom, 4D Sedan, 3.8 A, 200C/MV9 uses 5W-30; Custom, 4D Sedan, 3.8 A, 250C/M31 uses 5W-30; Custom, 4D Sedan, 4.1 4 uses 5W-30; Custom, 4D Sedan, 5.0 Y uses 5W-30; Custom, 4D Sedan, 5.7 N uses 5W-30; Limited, 2D Coupe, 3.8 A, 200C/MV9 uses 5W-30; Limited, 2D Coupe, 3.8 A, 250C/M31 uses 5W-30; Limited, 2D Coupe, 4.1 4 uses 5W-30; Limited, 2D Coupe, 5.0 Y uses 5W-30; Limited, 2D Coupe, 5.7 N uses 5W-30; Limited, 4D Sedan, 3.8 A, 200C/MV9 uses 5W-30; Limited, 4D Sedan, 3.8 A, 250C/M31 uses 5W-30; Limited, 4D Sedan, 4.1 4 uses 5W-30; Limited, 4D Sedan, 5.0 Y uses 5W-30; Limited, 4D Sedan, 5.7 N uses 5W-30.
What is the oil capacity of a 1984 Buick LeSabre?
Oil capacity depends on the engine: Custom, 2D Coupe, 3.8 A, 200C/MV9 holds 4.0 quarts with filter; Custom, 2D Coupe, 3.8 A, 250C/M31 holds 4.0 quarts with filter; Custom, 2D Coupe, 4.1 4 holds 4.0 quarts with filter; Custom, 2D Coupe, 5.0 Y holds 4.0 quarts with filter; Custom, 2D Coupe, 5.7 N holds 6.5 quarts with filter; Custom, 4D Sedan, 3.8 A, 200C/MV9 holds 4.0 quarts with filter; Custom, 4D Sedan, 3.8 A, 250C/M31 holds 4.0 quarts with filter; Custom, 4D Sedan, 4.1 4 holds 4.0 quarts with filter; Custom, 4D Sedan, 5.0 Y holds 4.0 quarts with filter; Custom, 4D Sedan, 5.7 N holds 6.5 quarts with filter; Limited, 2D Coupe, 3.8 A, 200C/MV9 holds 4.0 quarts with filter; Limited, 2D Coupe, 3.8 A, 250C/M31 holds 4.0 quarts with filter; Limited, 2D Coupe, 4.1 4 holds 4.0 quarts with filter; Limited, 2D Coupe, 5.0 Y holds 4.0 quarts with filter; Limited, 2D Coupe, 5.7 N holds 6.5 quarts with filter; Limited, 4D Sedan, 3.8 A, 200C/MV9 holds 4.0 quarts with filter; Limited, 4D Sedan, 3.8 A, 250C/M31 holds 4.0 quarts with filter; Limited, 4D Sedan, 4.1 4 holds 4.0 quarts with filter; Limited, 4D Sedan, 5.0 Y holds 4.0 quarts with filter; Limited, 4D Sedan, 5.7 N holds 6.5 quarts with filter.
How often should I change the oil in my 1984 Buick LeSabre?
Most 1984 Buick LeSabre 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 — Buick recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1984 Buick LeSabre?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1984 Buick LeSabre. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.