Mitsubishi Diamante MPG by year — every rating on record
The Mitsubishi Diamante has a combined EPA fuel economy rating for 11 model years, from 1992 to 2002. Across those years its best rated version returned 19 mpg (1992) and its thirstiest returned 18 mpg (1992). The EPA record holds 16 configurations for this nameplate, most recently a Midsize Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 1992 | 2 | 19 mpg | 18 mpg | #42 of 58 (28th pct) | Front-Wheel Drive | Premium | Compact Cars |
| 1993 | 2 | 18 mpg | 18 mpg | #48 of 55 (13th pct) | Front-Wheel Drive | Premium | Compact Cars |
| 1994 | 2 | 18 mpg | 18 mpg | #45 of 53 (15th pct) | Front-Wheel Drive | Premium | Compact Cars |
| 1995 | 2 | 19 mpg | 19 mpg | #44 of 60 (27th pct) | Front-Wheel Drive | Premium | Compact Cars |
| 1996 | 2 | 19 mpg | 18 mpg | #43 of 52 (18th pct) | Front-Wheel Drive | Premium | Compact Cars |
| 1997 | 1 | 19 mpg | 19 mpg | #29 of 43 (33th pct) | Front-Wheel Drive | Premium | Midsize Cars |
| 1998 | 1 | 18 mpg | 18 mpg | #42 of 47 (11th pct) | Front-Wheel Drive | Premium | Midsize Cars |
| 1999 | 1 | 18 mpg | 18 mpg | #47 of 56 (16th pct) | Front-Wheel Drive | Premium | Midsize Cars |
| 2000 | 1 | 18 mpg | 18 mpg | #46 of 51 (10th pct) | Front-Wheel Drive | Premium | Midsize Cars |
| 2001 | 1 | 18 mpg | 18 mpg | #50 of 54 (8th pct) | Front-Wheel Drive | Premium | Midsize Cars |
| 2002 | 1 | 18 mpg | 18 mpg | #48 of 52 (8th pct) | Front-Wheel Drive | Premium | Midsize Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Mitsubishi Diamante placed highest in 1997 at #29 of 43, and lowest in 2001 at #50 of 54. It spent 0 of its 11 ranked years in the top half of its class.
Every configuration on record
All 16 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2002 | 3.5L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC | 16 | 23 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 2001 | 3.5L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | 3.5L 6-cyl | 16 | 23 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 2000 | 3.5L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC | 16 | 23 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1999 | 3.5L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC | 16 | 22 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1998 | 3.5L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC | 16 | 23 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1997 | 3.5L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC (FFS) | 16 | 24 | 19 | 605.3 | 15.7 | $4,100 | 467.7368421052632 | n/a |
| 1996 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | DOHC (FFS) | 16 | 22 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1996 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC (FFS) | 16 | 23 | 19 | 605.3 | 15.7 | $4,100 | 467.7368421052632 | n/a |
| 1995 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC (FFS) | 16 | 23 | 19 | 605.3 | 15.7 | $4,100 | 467.7368421052632 | n/a |
| 1995 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | DOHC (FFS) | 16 | 23 | 19 | 605.3 | 15.7 | $4,100 | 467.7368421052632 | n/a |
| 1994 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | (DOHC) (FFS) | 16 | 22 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1994 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | (SOHC) (FFS) | 16 | 22 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1993 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | DOHC (FFS) | 16 | 22 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1993 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC (FFS) | 16 | 23 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1992 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | DOHC (FFS) | 16 | 22 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1992 | 3.0L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | SOHC (FFS) | 16 | 23 | 19 | 605.3 | 15.7 | $4,100 | 467.7368421052632 | n/a |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 1 of 3 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 1992 → 1993 | 19 → 18 mpg | -1 mpg | 639 gal |
| 1994 → 1995 | 18 → 19 mpg | +1 mpg | 605 gal |
| 1997 → 1998 | 19 → 18 mpg | -1 mpg | 639 gal |
What Diamante fuel costs over a year
At the EPA's 11,500 miles a year, the 2002 Mitsubishi Diamante burns 639 to 639 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,917 | $1,917 | $0 |
| $3.50/gal | $2,236 | $2,236 | $0 |
| $4.00/gal | $2,556 | $2,556 | $0 |
EPA’s own estimate for the 2002 model year is $4,300 to $4,300 a year in fuel, or $10,250 more than the average new vehicle over five years.
How it compares with other Compact Cars
Across the 498 nameplates EPA classifies as Compact Cars, the median best combined rating is 26 mpg. At 18 mpg the Mitsubishi Diamante is 8 mpg below the median, which is worth about $688 a year at $3.50 a gallon.
- All Compact Cars rankings — every nameplate in the class, best to worst.
Other Mitsubishi nameplates
Every Mitsubishi model compared → — all nameplates ranked by best combined rating, with what each one costs a year.