2018 Honda Civic Si 4Dr
32MPG
Combined
1
Trim
← 2017
2018
Updated February 27, 2026
Looking at the 2018 Honda Civic Si 4Dr? This Sedan offers 32 combined MPG and comes with 1 available configurations. We break down the specs, safety data, and how it compares to the competition.
2018 Honda Civic Si 4Dr Specifications
| Spec | Value |
|---|---|
| Combined MPG | 32 combined MPG |
| City MPG | 28 |
| Highway MPG | 38 |
| Body Style | Sedan |
| Fuel Type | Premium |
| Drive | FWD |
| Available Trims | 1 |
Annual Fuel Cost
Based on EPA estimates, the 2018 Honda Civic Si 4Dr costs approximately $1,800 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2018 Honda Civic Si 4Dr
See how it stacks up against similar vehicles:
Other Model Years
- 2018 (this page)
- 2017 Honda Civic Si 4Dr
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