The 2010 Honda Civic’s 1.8-liter inline-four produces 140 horsepower. This rating applies to the U.S.-spec LX, EX, and EX-L trims for that model year.
Engine specs at a glance
Here are the core figures for the 1.8-liter engine as used in the 2010 Civic for U.S.-market models.
- Displacement: 1.8 liters (1,799 cc)
- Configuration: Inline-4 with i-VTEC
- Horsepower: 140 hp at 6,300 rpm
- Torque: 128 lb-ft at 4,600 rpm
- Engine code: R18A (R18A1 in many trims)
These figures reflect the standard gasoline engine available on most 2010 Civic variants in North America.
Context and how it translates to daily driving
With 140 hp, the Civic’s acceleration is suitable for city commuting and highway merging, especially when paired with either the five-speed manual or five-speed automatic transmissions offered in different trims. The engine’s i-VTEC system helps balance performance with efficiency by adjusting valve timing across revs.
How it compares within the Civic lineup
Note that the 2010 Civic Si carried a much more powerful 2.0-liter engine rated at about 197 hp, a separate performance variant. The 2010 Civic Hybrid used a different powertrain altogether, combining a petrol engine with electric motors rather than the 1.8L gasoline engine described here.
Summary
In practical terms, the 2010 Honda Civic’s 1.8 L four-cylinder delivers 140 horsepower and 128 lb-ft of torque, offering a balanced blend of everyday responsiveness and efficiency across LX, EX, and EX-L configurations.