Does the 2011 Mazda 6 need premium gas?
Every trim takes regular — no premium needed.
| Trim (engine / transmission) | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 2.5L 4-cyl, S5 automatic, FWD | REGULAR | 25 | $2,500 |
| 2.5L 4-cyl, 6-spd manual, FWD | REGULAR | 24 | $2,600 |
| 3.7L 6-cyl, S6 automatic, FWD | REGULAR | 21 | $2,950 |
The EPA records the fuel each version was tested on. Whether premium is strictly required or just recommended is an owner's-manual detail the EPA dataset doesn't include — so we don't guess it.
3 trim(s) · EPA FuelEconomy.gov · retrieved 2026-06-14.