1991 Saturn SC Oil Type & Capacity: 5W-30 (4.0 quarts)
The 1991 Saturn SC takes 5W-30 motor oil — 4.0 quarts with a filter change, per the factory service manual.
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Automatic | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
| Standard | API - SAE 5W-30 (Preferred) (Below 0Deg.F to Above 100Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 4.00 QTS. | — | — |
More factory specs & repair guides for your SC
🛞 1991 Saturn SC Tire Size & Pressure →🌧️ 1991 Saturn SC Wiper Blade Sizes →💡 1991 Saturn SC Light Bulb Sizes →📖 1991 Saturn SC Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
7.0 quarts (6.62 L) — 50/50 mixture of DEX-COOL and water
Frequently asked questions
What type of oil does a 1991 Saturn SC take?
The 1991 Saturn SC 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.
What is the oil capacity of a 1991 Saturn SC?
The 1991 Saturn SC oil capacity is 4.0 quarts with a filter change.
How often should I change the oil in my 1991 Saturn SC?
Most 1991 Saturn SC 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 — Saturn recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1991 Saturn SC?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 Saturn SC. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.