1991 Pontiac 6000 Oil Type & Capacity
The 1991 Pontiac 6000 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 |
|---|---|---|---|---|
| LE, 4D Sedan, 2.5 R, 125C/MD9 — 2.5L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| LE, 4D Sedan, 2.5 R, 3T40/MD9 — 2.5L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| LE, 4D Sedan, 3.1 T, 125C/MD9 — 3.1L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| LE, 4D Sedan, 3.1 T, 3T40/MD9 — 3.1L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| LE, 4D Sedan, 3.1 T, 4T60/ME9 — 3.1L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| LE, 4D Wagon — 3.1L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| SE — 3.1L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
Buy the right oil
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More specs & repair guides for your 6000
1991 Pontiac 6000 factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
13.2 quarts (12.49 L) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1991 Pontiac 6000 take?
The 1991 Pontiac 6000 takes 5W-30 motor oil (API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F)), per the factory service manual.
How much oil does a 1991 Pontiac 6000 take?
The 1991 Pontiac 6000 holds 4.0 quarts with a filter change.
Can I use synthetic oil in my 1991 Pontiac 6000?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 Pontiac 6000. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.