1990 Geo Prizm Oil Type & Capacity
The 1990 Geo Prizm takes 5W-30 motor oil — 3.9 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 3.9 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, 4D Hatchback, Automatic | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| Base, 4D Hatchback, Standard | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| Base, 4D Sedan, Automatic | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| Base, 4D Sedan, Standard | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| GSi, 4D Hatchback, Automatic | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| GSi, 4D Hatchback, Standard | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| GSi, 4D Sedan, Automatic | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| GSi, 4D Sedan, Standard | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| LSi, 4D Hatchback, Automatic | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| LSi, 4D Hatchback, Standard | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| LSi, 4D Sedan, Automatic | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
| LSi, 4D Sedan, Standard | SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 3.90 QTS. | 3.60 QTS. | Use oil that has been certified by the American Petroleum Institute. |
Buy the right oil
Buy 5W-30 motor oil on Amazon1990 Geo Prizm oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Prizm
1990 Geo Prizm factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
5.8 quarts (5.48 L) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1990 Geo Prizm take?
The 1990 Geo Prizm takes 5W-30 motor oil (SAE 5W-30 (Below 50Deg.F), 10W-30 (Preferred) 10W-40/50 (Above 0Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F)), per the factory service manual.
How much oil does a 1990 Geo Prizm take?
The 1990 Geo Prizm holds 3.9 quarts with a filter change, or 3.6 quarts without changing the filter.
Can I use synthetic oil in my 1990 Geo Prizm?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Geo Prizm. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.