Lexus IS 500 MPG by year — every rating on record
The Lexus IS 500 has a combined EPA fuel economy rating for 4 model years, from 2022 to 2025. Across those years its best rated version returned 20 mpg (2022) and its thirstiest returned 20 mpg (2022). The EPA record holds 4 configurations for this nameplate, most recently a Compact Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2022 | 1 | 20 mpg | 20 mpg | #70 of 73 (4th pct) | Rear-Wheel Drive | Premium | Compact Cars |
| 2023 | 1 | 20 mpg | 20 mpg | #66 of 72 (8th pct) | Rear-Wheel Drive | Premium | Compact Cars |
| 2024 | 1 | 20 mpg | 20 mpg | #70 of 75 (7th pct) | Rear-Wheel Drive | Premium | Compact Cars |
| 2025 | 1 | 20 mpg | 20 mpg | #80 of 85 (6th pct) | Rear-Wheel Drive | Premium | Compact Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Lexus IS 500 placed highest in 2023 at #66 of 72, and lowest in 2025 at #80 of 85. It spent 0 of its 4 ranked years in the top half of its class.
Every configuration on record
All 4 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 5.0L 8-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI & PFI | 17 | 25 | 20 | 575.0 | 14.9 | $3,900 | 451 | 4/10 |
| 2024 | 5.0L 8-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI & PFI | 17 | 25 | 20 | 575.0 | 14.9 | $3,900 | 451 | 4/10 |
| 2023 | 5.0L 8-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI & PFI | 17 | 25 | 20 | 575.0 | 14.9 | $3,900 | 451 | 4/10 |
| 2022 | 5.0L 8-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI & PFI | 17 | 25 | 20 | 575.0 | 14.9 | $3,900 | 451 | 4/10 |
What IS 500 fuel costs over a year
At the EPA's 11,500 miles a year, the 2025 Lexus IS 500 burns 575 to 575 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 | $1,725 | $1,725 | $0 |
| $3.50/gal | $2,013 | $2,013 | $0 |
| $4.00/gal | $2,300 | $2,300 | $0 |
EPA’s own estimate for the 2025 model year is $3,900 to $3,900 a year in fuel, or $8,250 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 20 mpg the Lexus IS 500 is 6 mpg below the median, which is worth about $464 a year at $3.50 a gallon.
- All Compact Cars rankings — every nameplate in the class, best to worst.
Other Lexus nameplates
Every Lexus model compared → — all nameplates ranked by best combined rating, with what each one costs a year.