The 2015 Honda Civic offered multiple engines depending on trim: most models used a 1.8-liter inline-4; the Si used a 2.4-liter inline-4; and the Hybrid used a 1.5-liter Atkinson-cycle engine with an electric motor.
Engine options by trim
Below is a breakdown of the main powertrains across the 2015 Civic lineup, including typical outputs and transmission choices.
Gasoline models (LX, EX, EX-L)
These non-performance trims use the 1.8-liter engine and are offered with manual or automatic transmissions.
- 1.8-liter four-cylinder i-VTEC inline-4
- Approximate output: 143 horsepower and 128 lb-ft of torque
- Transmissions: 5-speed manual or 5-speed automatic
In everyday driving, this setup provides balanced performance and good fuel economy, with manual or automatic options depending on the specific trim and market.
Civic Si
The Si is the sport-oriented variant, equipped with a more powerful engine and a manual transmission.
- 2.4-liter inline-4 i-VTEC engine
- Output: about 205 horsepower and 174 lb-ft of torque
- Transmission: 6-speed manual only
This version delivers notably sharper acceleration and handling characteristics compared to the standard Civic lineup.
Civic Hybrid
The Hybrid combines a gasoline engine with an electric motor to maximize efficiency, using a dedicated hybrid transmission.
- 1.5-liter inline-4 Atkinson-cycle gasoline engine
- Electric motor integrated with a hybrid system
- Transmission: CVT (e-CVT)
The hybrid focuses on fuel economy, with a total system output typically around the 130-140 horsepower range, depending on specific configuration and market.
Summary
For the 2015 Honda Civic, engine choices ranged from the 1.8-liter inline-4 in most trims, to the 2.4-liter inline-4 in the Civic Si, and a hybrid setup using a 1.5-liter Atkinson-cycle engine with an electric motor for the Civic Hybrid. Transmission options varied: manual or automatic on gasoline models, and a CVT for the hybrid.