2021 Mazda Mazda6 Oil Type & Capacity
The 2021 Mazda Mazda6 uses 5W-30 or 0W-20 oil, with a capacity of about 4.4-5.4 quarts depending on the engine.
Key takeaways
- Oil: 5W-30/0W-20, about 5.4 quarts with a filter change.
- Grade and capacity vary by engine - match your exact engine.
- Change the oil filter every time you change the oil.
| Engine | Viscosity | Capacity |
|---|---|---|
| 6 SKYACTIV-D 2.2 AWD | 5W-30 | 5.4 qt / 5.1 L |
| 6 SKYACTIV-G 2.0 | 0W-20 | 4.4 qt / 4.2 L |
| 6 SKYACTIV-G 2.5 AWD | 0W-20 | 4.8 qt / 4.5 L |
| 6 SKYACTIV-G 2.5 T | 5W-30 | 5.1 qt / 4.8 L |
Capacities are with an oil-filter change. Confirm on the dipstick after refilling.
Oil & filter for the 2021 Mazda Mazda6
You need 5W-30 oil (5.4 quarts with a filter change). Buy the oil and a filter together; a DIY oil change takes about 30 minutes, or any shop can do it.
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Shop 5W-30 oil + filterFrequently asked
How much oil does a 2021 Mazda Mazda6 take?
It depends on the engine: 6 SKYACTIV-D 2.2 AWD takes 5.4 qt; 6 SKYACTIV-G 2.0 takes 4.4 qt; 6 SKYACTIV-G 2.5 AWD takes 4.8 qt; 6 SKYACTIV-G 2.5 T takes 5.1 qt.
What kind of oil does a 2021 Mazda Mazda6 use?
5W-30 or 0W-20 full-synthetic motor oil.
Can I use a thicker oil instead of 5W-30?
Stick with 5W-30. Modern engines spec a low-viscosity oil for fuel economy and tight clearances; a thicker grade can reduce mpg and may affect your warranty.
See where this sits in our study of the most common engine oil viscosities in the US.