The 2008 Civic EX uses a 1.8-liter inline-four engine with Honda’s i-VTEC variable-valve timing system, delivering about 140 horsepower. This is different from the Si’s 2.0-liter performance-focused engine.
Engine at a glance
Here are the key technical details that define the Civic EX’s powerplant.
- Displacement: 1.8 liters
- Configuration: Inline-4
- Valvetrain: i-VTEC variable-valve timing
- Power: approximately 140 horsepower
- Torque: approximately 128 lb-ft
- Fuel system: Multi-point fuel injection
- Aspiration: Naturally aspirated
- Transmission options: 5-speed manual or 5-speed automatic
In short, this engine is tuned for a balanced blend of everyday usability, efficiency, and smooth, linear acceleration typical of Honda’s mid-range Civics.
Technical notes
Engine code and family
The 2008 Civic EX’s 1.8-liter i-VTEC engine is part of Honda’s R18A family (often referenced as the R18A1 in various markets). It uses i-VTEC on the intake side to optimize performance and efficiency across a broad rpm range, distinguishing it from the higher-performance Si’s 2.0-liter powerplant.
Performance context
Designed for practical daily driving, the EX engine prioritizes a wide, usable torque band and smooth power delivery. It pairs with the Civic’s chassis and transmissions to deliver reliable acceleration and good fuel economy for the era.
Summary
In concise terms, the 2008 Honda Civic EX is powered by a 1.8-liter inline-four i-VTEC engine producing about 140 horsepower and 128 lb-ft of torque, available with either a 5-speed manual or a 5-speed automatic transmission. It represents a balance of efficiency and everyday performance typical of the model line.