1990 Porsche 911 Oil Type & Capacity
The 1990 Porsche 911 takes 15W-40 motor oil — 9.5 quarts with a filter change, per the factory service manual.
Factory-spec answer
15W-40 — 9.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Carrera 2, 2D Convertible, Automatic — 3.6L Eng | API - SF/CC, SF/CD, SG/CC or SG/CD, SAE 15W-40, 20W-50/40 (Above 50Deg.F), SAE 15W-40, 10W-40/30 (Below 50Deg.F), SAE 10W-30 and 5W-30 (Below 14Deg.F) | 9.50 QTS. | — | Manufacturer's approved fluid only. |
| Carrera 2, 2D Convertible, Standard — 3.6L Eng | API - SF/CC, SF/CD, SG/CC or SG/CD, SAE 15W-40, 20W-50/40 (Above 50Deg.F), SAE 15W-40, 10W-40/30 (Below 50Deg.F), SAE 10W-30 and 5W-30 (Below 14Deg.F) | 9.50 QTS. | — | Manufacturer's approved fluid only. |
| Carrera 2, 2D Coupe, Automatic — 3.6L Eng | API - SF/CC, SF/CD, SG/CC or SG/CD, SAE 15W-40, 20W-50/40 (Above 50Deg.F), SAE 15W-40, 10W-40/30 (Below 50Deg.F), SAE 10W-30 and 5W-30 (Below 14Deg.F) | 9.50 QTS. | — | Manufacturer's approved fluid only. |
| Carrera 2, 2D Coupe, Standard — 3.6L Eng | API - SF/CC, SF/CD, SG/CC or SG/CD, SAE 15W-40, 20W-50/40 (Above 50Deg.F), SAE 15W-40, 10W-40/30 (Below 50Deg.F), SAE 10W-30 and 5W-30 (Below 14Deg.F) | 9.50 QTS. | — | Manufacturer's approved fluid only. |
| Carrera 4, 2D Convertible — 3.6L Eng | API - SF/CC, SF/CD, SG/CC or SG/CD, SAE 15W-40, 20W-50/40 (Above 50Deg.F), SAE 15W-40, 10W-40/30 (Below 50Deg.F), SAE 10W-30 and 5W-30 (Below 14Deg.F) | 9.50 QTS. | — | Manufacturer's approved fluid only. |
| Carrera 4, 2D Coupe — 3.6L Eng | API - SF/CC, SF/CD, SG/CC or SG/CD, SAE 15W-40, 20W-50/40 (Above 50Deg.F), SAE 15W-40, 10W-40/30 (Below 50Deg.F), SAE 10W-30 and 5W-30 (Below 14Deg.F) | 9.50 QTS. | — | Manufacturer's approved fluid only. |
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More specs & repair guides for your 911
1990 Porsche 911 factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Frequently asked questions
What type of oil does a 1990 Porsche 911 take?
The 1990 Porsche 911 takes 15W-40 motor oil (API - SF/CC, SF/CD, SG/CC or SG/CD, SAE 15W-40, 20W-50/40 (Above 50Deg.F), SAE 15W-40, 10W-40/30 (Below 50Deg.F), SAE 10W-30 and 5W-30 (Below 14Deg.F)), per the factory service manual.
How much oil does a 1990 Porsche 911 take?
The 1990 Porsche 911 holds 9.5 quarts with a filter change.
Can I use synthetic oil in my 1990 Porsche 911?
Yes. 15W-40 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Porsche 911. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.