Mercedes-Benz · 1986–1991 · Gas
Mercedes-Benz 420 MPG by year
The EPA has rated 6 model years of the Mercedes-Benz 420, from 1986 to 1991. The most fuel-efficient year is the 1991, at 15 MPG combined in its best configuration. The 1991 model is 21% less efficient than the median midsize car that year (15 vs. 19 MPG).
Combined MPG by model year
- 420, most efficient version
- Range across configurations
- Class median
Shaded band: range across that year's configurations. Class median: same-year models in the same class, rated in MPG. Click a point to open that model year; the table below lists every value.
Every 420 model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 1991 | Gas | 15 MPG lowest 13 |
14 / 17 | 19 | — | 2 | $3,950 |
| 1990 | Gas | 15 MPG lowest 13 |
14 / 17 | 20 | — | 2 | $3,950 |
| 1989 | Gas | 15 MPG | 14 / 17 | 20.5 | — | 1 | $3,950 |
| 1988 | Gas | 15 MPG | 14 / 17 | 20 | — | 1 | $3,950 |
| 1987 | Gas | 15 MPG | 14 / 17 | 19 | — | 1 | $3,950 |
| 1986 | Gas | 15 MPG | 14 / 17 | 19 | — | 1 | $3,950 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare 420 model years
See how much a newer 420 would save over an older one.
Models similar to the Mercedes-Benz 420
Frequently asked questions
Which Mercedes-Benz 420 year has the best fuel economy?
The 1986 Mercedes-Benz 420, rated up to 15 MPG combined. At 15,000 miles a year with $3.95/gal premium gas, that works out to about $3,950 a year.
What is the fuel economy of the latest Mercedes-Benz 420?
The 1991 Mercedes-Benz 420 is rated up to 15 MPG combined.