2005 Mazda 6 Oil Type & Capacity
The 2005 Mazda 6 oil type depends on the engine: the i, 4D Hatchback, Automatic takes 5W-20 (4.5 quarts qt with filter); the i, 4D Hatchback, Standard takes 5W-20 (4.5 quarts qt with filter); the i, 4D Sedan, Automatic takes 5W-20 (4.5 quarts qt with filter); the i, 4D Sedan, Standard takes 5W-20 (4.5 quarts qt with filter); the s, 4D Hatchback, Automatic takes 5W-20 (6.0 quarts qt with filter); the s, 4D Hatchback, Standard takes 5W-20 (6.0 quarts qt with filter); the s, 4D Sedan, Automatic takes 5W-20 (6.0 quarts qt with filter); the s, 4D Sedan, Standard takes 5W-20 (6.0 quarts qt with filter); the s, 4D Wagon, Automatic takes 5W-20 (6.0 quarts qt with filter); the s, 4D Wagon, Standard takes 5W-20 (6.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- i, 4D Hatchback, Automatic: 5W-20, 4.5 quarts with filter
- i, 4D Hatchback, Standard: 5W-20, 4.5 quarts with filter
- i, 4D Sedan, Automatic: 5W-20, 4.5 quarts with filter
- i, 4D Sedan, Standard: 5W-20, 4.5 quarts with filter
- s, 4D Hatchback, Automatic: 5W-20, 6.0 quarts with filter
- s, 4D Hatchback, Standard: 5W-20, 6.0 quarts with filter
- s, 4D Sedan, Automatic: 5W-20, 6.0 quarts with filter
- s, 4D Sedan, Standard: 5W-20, 6.0 quarts with filter
- s, 4D Wagon, Automatic: 5W-20, 6.0 quarts with filter
- s, 4D Wagon, Standard: 5W-20, 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| i, 4D Hatchback, Automatic — 2.3L Eng | API - SAE 5W-20 Super Premium Engine Oil | 4.50 QTS. | 4.10 QTS. | — |
| i, 4D Hatchback, Standard — 2.3L Eng | API - SAE 5W-20 Super Premium Engine Oil | 4.50 QTS. | 4.10 QTS. | — |
| i, 4D Sedan, Automatic — 2.3L Eng | API - SAE 5W-20 Super Premium Engine Oil | 4.50 QTS. | 4.10 QTS. | — |
| i, 4D Sedan, Standard — 2.3L Eng | API - SAE 5W-20 Super Premium Engine Oil | 4.50 QTS. | 4.10 QTS. | — |
| s, 4D Hatchback, Automatic — 3.0L Eng | API - SAE 5W-20 Super Premium Engine Oil | 6.00 QTS. | 5.50 QTS. | — |
| s, 4D Hatchback, Standard — 3.0L Eng | API - SAE 5W-20 Super Premium Engine Oil | 6.00 QTS. | 5.50 QTS. | — |
| s, 4D Sedan, Automatic — 3.0L Eng | API - SAE 5W-20 Super Premium Engine Oil | 6.00 QTS. | 5.50 QTS. | — |
| s, 4D Sedan, Standard — 3.0L Eng | API - SAE 5W-20 Super Premium Engine Oil | 6.00 QTS. | 5.50 QTS. | — |
| s, 4D Wagon, Automatic — 3.0L Eng | API - SAE 5W-20 Super Premium Engine Oil | 6.00 QTS. | 5.50 QTS. | — |
| s, 4D Wagon, Standard — 3.0L Eng | API - SAE 5W-20 Super Premium Engine Oil | 6.00 QTS. | 5.50 QTS. | — |
More factory specs & repair guides for your 6
🛞 2005 Mazda 6 Tire Size & Pressure →🌧️ 2005 Mazda 6 Wiper Blade Sizes →💡 2005 Mazda 6 Light Bulb Sizes →📖 2005 Mazda 6 Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
7.4 quarts (7 L) — MAZDA Premium Engine Coolant. Above 3Deg.F (-16Deg.C) use: 35/65 mixture of antifreeze and water, above -15Deg. F (26Deg.C) use: 45/55 mixture of antifreeze and water, above -40Deg.F (40Deg.C) use: 55/45 mixture of antifreeze and water.
Frequently asked questions
What type of oil does a 2005 Mazda 6 take?
It depends on the engine: i, 4D Hatchback, Automatic uses 5W-20; i, 4D Hatchback, Standard uses 5W-20; i, 4D Sedan, Automatic uses 5W-20; i, 4D Sedan, Standard uses 5W-20; s, 4D Hatchback, Automatic uses 5W-20; s, 4D Hatchback, Standard uses 5W-20; s, 4D Sedan, Automatic uses 5W-20; s, 4D Sedan, Standard uses 5W-20; s, 4D Wagon, Automatic uses 5W-20; s, 4D Wagon, Standard uses 5W-20.
What is the oil capacity of a 2005 Mazda 6?
Oil capacity depends on the engine: i, 4D Hatchback, Automatic holds 4.5 quarts with filter; i, 4D Hatchback, Standard holds 4.5 quarts with filter; i, 4D Sedan, Automatic holds 4.5 quarts with filter; i, 4D Sedan, Standard holds 4.5 quarts with filter; s, 4D Hatchback, Automatic holds 6.0 quarts with filter; s, 4D Hatchback, Standard holds 6.0 quarts with filter; s, 4D Sedan, Automatic holds 6.0 quarts with filter; s, 4D Sedan, Standard holds 6.0 quarts with filter; s, 4D Wagon, Automatic holds 6.0 quarts with filter; s, 4D Wagon, Standard holds 6.0 quarts with filter.
How often should I change the oil in my 2005 Mazda 6?
Most 2005 Mazda 6 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 — Mazda recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2005 Mazda 6?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2005 Mazda 6. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.