1984–1989 Porsche 911 Oil Change
Exact oil type, capacity, filter part numbers, drain plug size and torque for the 1984–1989 Porsche 911 with the 3.2L Air-Cooled Flat-6 engine, plus the tools you'll need and a step-by-step video.
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Porsche Air-Cooled Flat-6 — 911 3.2 Carrera 1984–1989
1984–1989 911 · 1984–1989 Carrera
Some Experience Helpful
✅ The classic air-cooled 911 uses 20W-50 — thicker than modern cars. Huge 11.6 quart capacity. These engines need regular oil changes to stay healthy. A labor of love for any 911 owner.
⚠️ Air-cooled 911 uses 20W-50 — completely different from modern cars. Large 11.6 quart capacity requires adequate drain container.
Specs not yet verified. We're still checking this guide's oil type, capacity, part numbers and torque against the manufacturer's data. Confirm them in your owner's manual before you start.
Oil Type
20W-50 Full Synthetic
Capacity
11.6 quarts (with filter)
Oil Filter
Porsche #93010722552 | Mahle OC8
Engine Code
3.2L Air-Cooled Flat-6
Tools You'll Need
- 24mm drain plug socket or wrench
- Oil filter wrench (standard spin-on type)
- Oil drain pan — minimum 3.5 gallon capacity
- Torque wrench
- New crush washer (Porsche #90012310100)
- Funnel
- Rags or shop towels
Instructional Video
Video by FCP Euro — Watch on YouTube ↗
| Drain plug size | 24mm | Torque: 37 ft-lbs |
| Crush washer | Porsche #90012310100 |
| Filter type | Spin-on — standard filter wrench |
| Filter location | Passenger side of engine (rear engine) |
| Oil change interval | 5,000–10,000 miles (full synthetic) or per OEM monitor |
| Oil life reset | No oil life monitor — use mileage interval. |
🛢️ Oil Pal tip: At 11.6 quarts the air-cooled 911 is one of the largest drains you'll encounter — Oil Pal's 3.5-gallon capacity handles it perfectly.
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