2015 · Compact Car · Gas
2015 Lexus IS MPG & fuel economy
The 2015 Lexus IS is a compact car offered in 5 EPA-rated configurations. The most efficient version returns 24 MPG combined (21 city / 30 highway) on premium gasoline. Across the lineup, combined ratings range from 21 to 24 MPG. Efficiency is unchanged from the 2014 model. Among 52 compact cars rated for 2015, it ranks 46th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,469 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2015 Lexus IS's fuel average is 10.2 km/L (9.8 L/100 km), or 24 MPG combined: 8.9 km/L in the city and 12.8 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 21 | 8.9 | 11.2 |
| Highway | 30 | 12.8 | 7.8 |
| Combined | 24 | 10.2 | 9.8 |
How it ranks among 2015 Compact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
IS MPG across model years
Full history →5 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 2.5L 6-cyl · 6-speed automatic IS 250 |
Gas | 21 MPG | 30 MPG | 24 MPG | — | $2,469 |
| AWD · 2.5L 6-cyl · 6-speed automatic IS 250 AWD |
Gas | 20 MPG | 27 MPG | 23 MPG | — | $2,576 |
| RWD · 3.5L 6-cyl · 8-speed automatic IS 350 |
Gas | 19 MPG | 28 MPG | 22 MPG | — | $2,693 |
| RWD · 3.5L 6-cyl · 6-speed automatic IS 350 C |
Gas | 19 MPG | 27 MPG | 22 MPG | — | $2,693 |
| AWD · 3.5L 6-cyl · 6-speed automatic IS 350 AWD |
Gas | 19 MPG | 26 MPG | 21 MPG | — | $2,821 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 2.5L 6-cyl
- Transmission
- 6-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 90 cu ft
- Cargo volume
- 11 cu ft
- Tailpipe CO₂
- 364 g/mi
- EPA fuel economy score
- 6/10
- EPA greenhouse gas score
- 6/10
2015 Lexus IS vs. rivals
Compare the 2015 IS
With any other car from any year, including other IS model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2015 Lexus IS?
Up to 24 MPG combined (21 city / 30 highway); ratings range from 21 to 24 MPG depending on configuration.
What fuel does the 2015 Lexus IS use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 2015 Lexus IS?
The 2015 Lexus IS's fuel average is 10.2 km/L (9.8 L/100 km), or 24 MPG combined: 8.9 km/L in the city and 12.8 km/L on the highway.
How much does it cost to fuel the 2015 Lexus IS per year?
About $2,469 at 15,000 miles a year with $3.95/gal premium gas, or $16.46 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.