Does the 2015 Mercedes-Benz SLK250 need premium gas?
Every gas trim of this model takes premium.
| Trim (engine / transmission) | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 1.8L 4-cyl, Automatic 7-spd, RWD | PREMIUM | 26 | $2,950 |
| 1.8L 4-cyl, 6-spd manual, RWD | PREMIUM | 26 | $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.
2 trim(s) · EPA FuelEconomy.gov · retrieved 2026-06-14.