The 2018 Honda Civic sedan offered two main engine options, yielding 158 horsepower with the 2.0-liter engine and 174 horsepower with the 1.5-liter turbo. The sportier Civic Si, a separate model, produces about 205 horsepower.
Engine options and horsepower
Honda supplied two engine choices for the 2018 Civic sedan, each with a distinct horsepower rating.
- 2.0-liter inline-4 engine: 158 horsepower
- 1.5-liter turbocharged inline-4 engine: 174 horsepower
These figures reflect the standard horsepower ratings for the sedan lineup, with actual performance influenced by transmission and trim selections.
Transmission and trim considerations
The 2.0-liter engine could be paired with a 6-speed manual or a CVT, depending on the trim, while the 1.5-liter turbo was generally paired with a CVT across most trims. For the high-performance Civic Si variant, horsepower rises to about 205 horsepower, but that model sits outside the standard Civic sedan lineup.
How to identify the engine in your car
To confirm which engine powers a specific 2018 Civic sedan, check the window sticker (Monroney label), review the VIN information, or consult the owner's manual for the exact trim and engine specifications.
Summary
In short, the 2018 Honda Civic sedan could have either 158 hp (2.0L) or 174 hp (1.5L turbo), with the Civic Si offering around 205 hp as a separate performance model. Always verify the exact figure for your particular car via the window sticker or VIN.