The 2012 Honda Civic EX is powered by a 1.8-liter inline-4 engine with Honda’s i-VTEC, delivering about 140 horsepower.
Engine specifications
The Civic EX uses a 1.8-liter inline-4 i-VTEC SOHC engine (often designated as the R18A1), and it was offered with either a 5-speed manual or a 5-speed automatic transmission depending on the market and trim. This setup emphasizes everyday usability and reliability for daily driving.
Key specifications include the following:
- Engine: 1.8-liter inline-4 (R18A1)
- Valvetrain: i-VTEC, SOHC, 16 valves
- Horsepower: 140 hp @ 6,500 rpm
- Torque: 128 lb-ft @ 4,600 rpm
The 1.8L i-VTEC engine is Honda’s standard powerplant for the EX trim in the 2012 Civic lineup, balancing efficiency with practical performance for everyday driving.
Performance context
Compared with the Civic Si’s larger 2.4-liter engine, the 1.8-liter EX engine prioritizes smooth, economical operation while still providing sufficient acceleration for typical road use. Transmission choices in the 2012 EX offered flexibility to suit different driving preferences.
Summary
The engine powering the 2012 Honda Civic EX is a 1.8-liter inline-4 with i-VTEC (R18A1), delivering about 140 horsepower and 128 lb-ft of torque—the standard powerplant for that trim in 2012.