2003 Pontiac Sunfire Oil Type & Capacity
The 2003 Pontiac Sunfire takes 5W-30 motor oil — 5.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Automatic | API - SAE 5W-30 | 5.00 QTS. | — | — |
| Standard | API - SAE 5W-30 | 5.00 QTS. | — | — |
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More specs & repair guides for your Sunfire
2003 Pontiac Sunfire factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
8.6 quarts (8.13 L) — 50/50 mixture of DEX-COOL and clean, drinkable water. After refill, the level must be checked. Add enough engine coolant so that the fluid is within the proper operating range.
Frequently asked questions
What type of oil does a 2003 Pontiac Sunfire take?
The 2003 Pontiac Sunfire takes 5W-30 motor oil (API - SAE 5W-30), per the factory service manual.
How much oil does a 2003 Pontiac Sunfire take?
The 2003 Pontiac Sunfire holds 5.0 quarts with a filter change.
Can I use synthetic oil in my 2003 Pontiac Sunfire?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2003 Pontiac Sunfire. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.