2003 Porsche Boxster Oil Type & Capacity
The 2003 Porsche Boxster takes 0W-40 motor oil — 8.7 quarts with a filter change, per the factory service manual.
Factory-spec answer
0W-40 — 8.7 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, Automatic | POSCHE A40 Engine Oil, SAE 0W-40 (for all temperatures ranges) SAE 5W-40 or 5W-50 (For temperatures warmer than -13 DegF, -25 DegC) | 8.70 QTS. | 8.50 QTS. | Manufacturer's approved fluid only. |
| Base, Standard | POSCHE A40 Engine Oil, SAE 0W-40 (for all temperatures ranges) SAE 5W-40 or 5W-50 (For temperatures warmer than -13 DegF, -25 DegC) | 8.70 QTS. | 8.50 QTS. | Manufacturer's approved fluid only. |
| S, Automatic | POSCHE A40 Engine Oil, SAE 0W-40 (for all temperatures ranges) SAE 5W-40 or 5W-50 (For temperatures warmer than -13 DegF, -25 DegC) | 8.70 QTS. | 8.50 QTS. | Manufacturer's approved fluid only. |
| S, Standard | POSCHE A40 Engine Oil, SAE 0W-40 (for all temperatures ranges) SAE 5W-40 or 5W-50 (For temperatures warmer than -13 DegF, -25 DegC) | 8.70 QTS. | 8.50 QTS. | Manufacturer's approved fluid only. |
Buy the right oil
Buy 0W-40 motor oil on Amazon2003 Porsche Boxster oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Boxster
2003 Porsche Boxster factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
5.02 quarts (19 L). Manufacturer's approved fluid only.
Frequently asked questions
What type of oil does a 2003 Porsche Boxster take?
The 2003 Porsche Boxster takes 0W-40 motor oil (POSCHE A40 Engine Oil, SAE 0W-40 (for all temperatures ranges) SAE 5W-40 or 5W-50 (For temperatures warmer than -13 DegF, -25 DegC)), per the factory service manual.
How much oil does a 2003 Porsche Boxster take?
The 2003 Porsche Boxster holds 8.7 quarts with a filter change, or 8.5 quarts without changing the filter.
Can I use synthetic oil in my 2003 Porsche Boxster?
Yes. 0W-40 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2003 Porsche Boxster. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.