Honda R18a engine

The 1.8-liter gasoline engine Honda R18A was produced by the company from 2005 to 2014, and it was installed in popular models such as Civic, City, FR-V, or Stream minivan. Currently, this engine has been replaced by an updated version with the index R18Z. In the R-series engine lineup, there is also a power unit labeled as R20A.

Honda R18A 1.8 liter engine technical specs.

Modifications: R18A1 and R18A2
Exact capacity1799 cm³
Power systeminjector
Engine power140 HP
Torque175 nm
Engine blockaluminum R4
Block headaluminum 16v
Cylinder diameter81 mm
Piston stroke.87.3 mm
Compression ratio10.5
Engine featuresSOHC
Hydraulic compensator. there is no
Timing drivechain
Timing phase adjusteri-VTEC
Turbochargingthere is no
What oils to use3.7 liters 5W-30
Fuel type95
Environmental classEURO 4/5
Approximate life expectancy280 000 HP

Fuel consumption Honda R18a engine

For example, the 2008 Honda Civic with a manual transmission:
City8.8 litry
Route5.5 litry
Mixed6.7 litry

Engine Overview and Common Failures

The weight of the engine R18A according to the catalog is 105 kg. The engine number R18A is located at the junction of the block and the gearbox. The power unit is quite sensitive to the quality of the fuel and oil used. Poor gasoline quickly affects the condition of the catalyst or lambda sensors. Owners often complain about the very noisy operation of the adsorber valve on the forum. Engine mounts and timing belt tensioner have a modest lifespan here. There are no hydraulic compensators, and approximately every 50,000 km the valves need to be adjusted.

Engine Honda R18a

Civic 8 (FD)2005 - 2012
City 5 (GM)2008 - 2014
FR-V 1 (BE)2007 - 2009
Stream 2 (RN6)2006 - 2014

Engines from the same line as Honda R18a engine

See Also

Honda B16a engine

The 1.6-liter petrol engine Honda B16A was produced in Japan from 1989 to 2000 and installed in sport versions of well-known models such as Civic and Integra. It was this B16A engine that was the first in the company to be equipped with the VTEC phase control system. The B-series line also includes the following engines: B16B, B18B, B18C, and B20B.

Honda F20C Engine

The 2.0-liter Honda F20C engine was manufactured by the company in Japan from 1999 to 2009 and exclusively installed only in the popular sports model with the S2000 index. This engine has an impressive power per liter. The F-series engine range also includes: F18B, F20A, F20B, F22B, and F23A.

Honda F23a engine

The 2.3-liter gasoline engine Honda F23A was produced by the company from 1997 to 2003 and installed in popular models of the Japanese conglomerate, such as the Accord or the Odyssey minivan. The F23A engine came in two different versions: with VTEC phase regulation system and without it. The F-series engine range also includes: F18B, F20A, F20B, F20C, and F22B.

Honda JNC1 engine

The 3.5-liter V6 engine Honda JNC1 was produced by the Japanese corporation from 2016 to 2022 and was only installed in the sports model Honda NSX and the American version Acura NSX. This hybrid powertrain was characterized by the use of a combined injection system with three electric motors.

Land Rover 10p Engine

The 2.5-liter Land Rover TD5 diesel engine with the 10P index was installed in Defender and Discovery II off-road vehicles from 1998 to 2002. After the introduction of Euro 3 emission standards, these engines received different designations: 15P and 16P. The TD5 line also includes a diesel engine: 15P.

Toyota 1FZ-F engine

The 4.5-liter Toyota 1FZ-F engine was produced only at the Japanese factory of the company between 1984 and 2009, and it was installed in off-road Land Cruiser models for developing markets. This engine is the longest-running carbureted engine in the world. The FZ series also includes the engine: 1FZ-FE.