1985 Buick Skylark Oil Type & Capacity
The 1985 Buick Skylark takes 5W-30 motor oil — 4.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 4.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Custom, 2.5 R, Automatic — 2.5L 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, 2.5 R, Standard, M19 — 2.5L 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, 2.5 R, Standard, MY8 — 2.5L 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, 2.8 W, Automatic — 2.8L 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, 2.8 W, Standard — 2.8L 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, 2.8 X, Automatic — 2.8L 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, 2.8 X, Standard — 2.8L 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, 2.5 R, Automatic — 2.5L 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, 2.5 R, Standard, M19 — 2.5L 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, 2.5 R, Standard, MY8 — 2.5L 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, 2.8 W, Automatic — 2.8L 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, 2.8 W, Standard — 2.8L 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, 2.8 X, Automatic — 2.8L 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, 2.8 X, Standard — 2.8L 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. | — | — |
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More specs & repair guides for your Skylark
1985 Buick Skylark factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site 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 1985 Buick Skylark take?
The 1985 Buick Skylark takes 5W-30 motor oil (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)), per the factory service manual.
How much oil does a 1985 Buick Skylark take?
The 1985 Buick Skylark holds 4.0 quarts with a filter change.
Can I use synthetic oil in my 1985 Buick Skylark?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1985 Buick Skylark. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.
Other Buick Skylark years
1998 Skylark1997 Skylark1996 Skylark1995 Skylark1994 Skylark1993 Skylark1992 Skylark1991 Skylark1990 Skylark1989 Skylark1988 Skylark1987 Skylark1986 Skylark1984 Skylark1983 Skylark