What’s the engine in the 2010 Honda Civic 1.8 L 4-cylinder?

The 2010 Honda Civic 1.8-liter 4-cylinder uses Honda’s R-series engine, most commonly the R18A1 (SOHC i-VTEC inline-four); in some regions, notably Europe, it’s designated R18A2. This engine family delivers around 140 hp and is known for efficiency and reliability. Below is a deeper look at the naming, regional variations, and key characteristics.

Engine designation and regional variations

Honda assigns specific engine codes that can vary by market even when the underlying design is the same. For the 2010 model year, the mainstream Civic with the 1.8-liter gasoline engine falls under the R-series umbrella, with slight differences in code and emissions calibration by region.

• North America: R18A1 (1.8L SOHC i-VTEC)
• Europe: R18A2 (1.8L SOHC i-VTEC, tuned for EU emissions/markets)
• Other markets (select Asia/Oceania): R18A variants aligned to local standards

While the code may differ across regions, these variants share the same architecture and core specifications, with differences mainly in emissions equipment and market tuning.

Key technical features

The R18 engine family was designed to balance fuel economy with everyday performance, leveraging variable valve timing and lightweight construction.

• Configuration: Inline-4, aluminum block and head, SOHC, 16 valves
• Valve timing: i-VTEC (variable valve timing and lift on the intake side)
• Displacement: 1,798 cc (1.8 liters)
• Output (typical for 2010 Civic 1.8): approximately 140 hp at 6,300 rpm and 128 lb-ft (174 Nm) at 4,300 rpm
• Timing: Chain-driven camshaft
• Fuel system: Multi-point fuel injection
• Emissions: ULEV-II (U.S.) or equivalent regional standards

These features collectively deliver a blend of smooth drivability, respectable performance for the class, and low operating costs, which helped define the Civic’s reputation in this era.

How to confirm your exact engine code

If you want to verify the precise engine code on your vehicle—useful for parts sourcing or documentation—you can check several locations and documents.

1. Engine bay stamping or label: Look for an “R18A…” marking on the engine block or a manufacturer label under the hood.
2. Owner’s manual and service booklet: Often list the engine family and code.
3. VIN-linked dealer lookup: A Honda dealer can confirm the engine code from your VIN.

Because markets may use slightly different codes for the same core engine, confirming your specific code ensures you get the correct parts and specifications.

Context within the Civic lineup

In the 8th-generation Honda Civic (2006–2011 in North America), the R18A1 powered the bulk of non-performance trims (e.g., DX, LX, EX). Performance-oriented Si models used the K20Z3 2.0L engine, and hybrids used the 1.3L IMA powertrain, distinguishing the R18 as the mainstream, fuel-efficient choice for daily driving.

Bottom line

The 2010 Honda Civic 1.8L 4-cylinder’s engine is the Honda R-series R18—specifically the R18A1 in North America and commonly R18A2 in Europe—delivering about 140 hp with SOHC i-VTEC technology and a strong reputation for efficiency and reliability.

Summary

The 2010 Civic 1.8L uses Honda’s R18 engine: typically R18A1 in North America and R18A2 in Europe. It’s a 1.8L SOHC i-VTEC inline-four producing about 140 hp, known for efficiency, low maintenance, and dependable performance across global markets.

What Honda Civics have the K24 engine?

The 2012-2015 Honda Civic Si (FG4/FB6) is the only generation of Honda Civic that came with a K24 engine from the factory in the United States. Specifically, it was the K24Z7 engine. While other Civic models may have K24 engines as a result of swaps, the 2012-2015 Civic Si is the only one with a factory K24. 
Here’s a more detailed breakdown:

• 2012-2015 Civic Si (FG4/FB6): This generation of Civic Si, available in coupe and sedan body styles, came equipped with the K24Z7 engine, producing around 201 horsepower and 170 lb-ft of torque according to MotorTrend. 
• K24 Swaps: It’s common for owners of other Civic generations, especially the 8th generation (2006-2011), to swap in a K24 engine, often from other Honda or Acura models. These swaps are popular for the increased torque and power they can provide. 
• Acura ILX: The 2013-2015 Acura ILX also used the K24Z7 engine, sharing it with the Civic Si. 

What kind of engine is in the 2010 Honda Civic 1.8 liter?

The JDM R18A is a 1.8L SOHC VTEC 4-cylinder engine renowned for its performance and reliability. It boasts an impressive power output of up to 140 horsepower at 6300 rpm and torque of up to 128 lb-ft at 4300 rpm.

What kind of engine is in the 2010 Honda Civic?

The Honda Civic 2010-2013 has 1 Petrol Engine on offer. The Petrol engine is 1799 cc . It is available with Manual & Automatic transmission. Depending upon the variant and fuel type the Civic 2010-2013 has a mileage of 13.1 to 15.5 kmpl & Ground clearance of Civic 2010-2013 is 170 mm.

What Civic has the D16Y8?

The Civic was introduced in 1996 initially with two 1.6-liter engines; the 1.6-liter SOHC VTEC D16Y8 4-cylinder engine producing 95 kW (127 hp) was found in the VTI coupe (EJ8), while the 1.6-liter SOHC D16Y4 4-cylinder engine producing 88 kW (118 hp) was standard across the range in the GLi and CXi models (EK1), with …