2003 Oldsmobile Alero Oil Type & Capacity
The 2003 Oldsmobile Alero oil type depends on the engine: the GL, 2D Coupe, 2.2 F takes 5W-30 (5.0 quarts qt with filter); the GL, 2D Coupe, 3.4 E takes 5W-30 (4.5 quarts qt with filter); the GL, 4D Sedan, 2.2 F takes 5W-30 (5.0 quarts qt with filter); the GL, 4D Sedan, 3.4 E takes 5W-30 (4.5 quarts qt with filter); the GLS, 2D Coupe takes 5W-30 (4.5 quarts qt with filter); the GLS, 4D Sedan, 2.2 F takes 5W-30 (5.0 quarts qt with filter); the GLS, 4D Sedan, 3.4 E takes 5W-30 (4.5 quarts qt with filter); the GX, 2D Coupe, Automatic takes 5W-30 (5.0 quarts qt with filter); the GX, 2D Coupe, Standard takes 5W-30 (5.0 quarts qt with filter); the GX, 4D Sedan, 2.2 F, Automatic takes 5W-30 (5.0 quarts qt with filter); the GX, 4D Sedan, 2.2 F, Standard takes 5W-30 (5.0 quarts qt with filter); the GX, 4D Sedan, 3.4 E takes 5W-30 (4.5 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- GL, 2D Coupe, 2.2 F: 5W-30, 5.0 quarts with filter
- GL, 2D Coupe, 3.4 E: 5W-30, 4.5 quarts with filter
- GL, 4D Sedan, 2.2 F: 5W-30, 5.0 quarts with filter
- GL, 4D Sedan, 3.4 E: 5W-30, 4.5 quarts with filter
- GLS, 2D Coupe: 5W-30, 4.5 quarts with filter
- GLS, 4D Sedan, 2.2 F: 5W-30, 5.0 quarts with filter
- GLS, 4D Sedan, 3.4 E: 5W-30, 4.5 quarts with filter
- GX, 2D Coupe, Automatic: 5W-30, 5.0 quarts with filter
- GX, 2D Coupe, Standard: 5W-30, 5.0 quarts with filter
- GX, 4D Sedan, 2.2 F, Automatic: 5W-30, 5.0 quarts with filter
- GX, 4D Sedan, 2.2 F, Standard: 5W-30, 5.0 quarts with filter
- GX, 4D Sedan, 3.4 E: 5W-30, 4.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| GL, 2D Coupe, 2.2 F — 2.2L Eng | API - SAE 5W-30 | 5.00 QTS. | — | — |
| GL, 2D Coupe, 3.4 E — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| GL, 4D Sedan, 2.2 F — 2.2L Eng | API - SAE 5W-30 | 5.00 QTS. | — | — |
| GL, 4D Sedan, 3.4 E — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| GLS, 2D Coupe — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| GLS, 4D Sedan, 2.2 F — 2.2L Eng | API - SAE 5W-30 | 5.00 QTS. | — | — |
| GLS, 4D Sedan, 3.4 E — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| GX, 2D Coupe, Automatic — 2.2L Eng | API - SAE 5W-30 | 5.00 QTS. | — | — |
| GX, 2D Coupe, Standard — 2.2L Eng | API - SAE 5W-30 | 5.00 QTS. | — | — |
| GX, 4D Sedan, 2.2 F, Automatic — 2.2L Eng | API - SAE 5W-30 | 5.00 QTS. | — | — |
| GX, 4D Sedan, 2.2 F, Standard — 2.2L Eng | API - SAE 5W-30 | 5.00 QTS. | — | — |
| GX, 4D Sedan, 3.4 E — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
More factory specs & repair guides for your Alero
🛞 2003 Oldsmobile Alero Tire Size & Pressure →🌧️ 2003 Oldsmobile Alero Wiper Blade Sizes →💡 2003 Oldsmobile Alero Light Bulb Sizes →📖 2003 Oldsmobile Alero Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
8.6 quarts (8.13 L) — 50/50 mixture of DEX-COOL and clean, drinkable water
Frequently asked questions
What type of oil does a 2003 Oldsmobile Alero take?
It depends on the engine: GL, 2D Coupe, 2.2 F uses 5W-30; GL, 2D Coupe, 3.4 E uses 5W-30; GL, 4D Sedan, 2.2 F uses 5W-30; GL, 4D Sedan, 3.4 E uses 5W-30; GLS, 2D Coupe uses 5W-30; GLS, 4D Sedan, 2.2 F uses 5W-30; GLS, 4D Sedan, 3.4 E uses 5W-30; GX, 2D Coupe, Automatic uses 5W-30; GX, 2D Coupe, Standard uses 5W-30; GX, 4D Sedan, 2.2 F, Automatic uses 5W-30; GX, 4D Sedan, 2.2 F, Standard uses 5W-30; GX, 4D Sedan, 3.4 E uses 5W-30.
What is the oil capacity of a 2003 Oldsmobile Alero?
Oil capacity depends on the engine: GL, 2D Coupe, 2.2 F holds 5.0 quarts with filter; GL, 2D Coupe, 3.4 E holds 4.5 quarts with filter; GL, 4D Sedan, 2.2 F holds 5.0 quarts with filter; GL, 4D Sedan, 3.4 E holds 4.5 quarts with filter; GLS, 2D Coupe holds 4.5 quarts with filter; GLS, 4D Sedan, 2.2 F holds 5.0 quarts with filter; GLS, 4D Sedan, 3.4 E holds 4.5 quarts with filter; GX, 2D Coupe, Automatic holds 5.0 quarts with filter; GX, 2D Coupe, Standard holds 5.0 quarts with filter; GX, 4D Sedan, 2.2 F, Automatic holds 5.0 quarts with filter; GX, 4D Sedan, 2.2 F, Standard holds 5.0 quarts with filter; GX, 4D Sedan, 3.4 E holds 4.5 quarts with filter.
How often should I change the oil in my 2003 Oldsmobile Alero?
Most 2003 Oldsmobile Alero owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Oldsmobile recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2003 Oldsmobile Alero?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2003 Oldsmobile Alero. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.