Does the 2021 Mercedes-Benz C-Class need premium gas?
Yes. Premium.
$267extra a year
- Premium listed for the C 300 RWD.
- All 6 trims list premium.
- Required or only recommended: the data does not say.
- 100% of 14 convertibles (2021) list premium.
12,000 miles a year. Gas $3.20. Premium $0.60 more.
| Trim | Engine | Grade | Mpg | Regular, a year | Premium, a year |
|---|---|---|---|---|---|
| C 300 RWD | 2.0L 4cyl | Premium | 27 | $1,422 | $1,689 |
| C 300 4MATIC AWD | 2.0L 4cyl | Premium | 27 | $1,422 | $1,689 |
| C 300 RWD | 2.0L 4cyl | Premium | 27 | $1,422 | $1,689 |
| C 300 4MATIC AWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| C 300 Cabriolet RWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| C 300 4MATIC Cabriolet 2D AWD | 2.0L 4cyl | Premium | 25 | $1,536 | $1,824 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2021 Mercedes-Benz C-Class | C 300 RWD | Premium |
| 2021 Audi A5 | Premium AWD | Premium |
| 2021 BMW 2 Series | 230i RWD | Premium |
What this cannot tell you
Check the fuel door or manual before you fill.
Gas prices and the premium gap change by state.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree