2018 Honda Civic SI fuel economy
The EPA lists 2 versions of the 2018 Honda Civic SI. Combined fuel economy ranges from 32 to 32 MPG; the most efficient version is rated 28 city / 38 highway.
At a glance
- Combined
- 32 MPG
- City and highway
- 28 and 38 most efficient version
- Yearly fuel cost
- $2,550 EPA estimate, most efficient version
Source: U.S. EPA fueleconomy.gov
Every version the EPA tested
| Version | Engine | Drive | City | Highway | Combined | Yearly fuel cost |
|---|---|---|---|---|---|---|
| Civic Si 2Dr Manual 6-spd | 4-cyl 1.5L | Front-Wheel Drive | 28 | 38 | 32 MPG | $2,550 |
| Civic Si 4Dr Manual 6-spd | 4-cyl 1.5L | Front-Wheel Drive | 28 | 38 | 32 MPG | $2,550 |
At EPA assumptions, the most efficient version costs about $2,550 per year in fuel.
Fuel economy in other model years
- 2023
- 2022
- 2018
- 2017