The 2.3-liter gasoline turbo engine Honda K23A or K23A1 was assembled from 2006 to 2012 and was exclusively installed only on the first generation Acura RDX luxury crossover. This power unit is famous for its reliability and excellent dynamic performance.
K-series family: K20A, K23A, K20C, K24Z, K24A, K24W.
Specifications
| Production years | 2006-2012 |
| Displacement, cc | 2300 |
| Fuel system | injector |
| Power output, hp | 240 |
| Torque output, Nm | 350 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 99 |
| Compression ratio | 8.8 |
| Features | DOHC, intercooler |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | i-VTEC |
| Turbocharging | MHI TD04HL-15T |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.2 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Acura RDX 2007) — city — highway — combined |
13.8 10.7 12.4 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 170 |
The engine was installed on:
- Acura RDX 1 (TB) in 2006 – 2012.
Disadvantages of the Honda K23A engine
- This turbo engine is very reliable and has virtually no congenital problems.
- If you neglect the oil change schedule, the turbine will quickly fail.
- On a run of more than 100,000 km, the timing chain often stretches and starts to rattle.
- The engine mounts and the front crankshaft oil seal have a low resource.
- There are no hydraulic lifters and valve clearances need to be adjusted every 90,000 km.
Frequently asked questions about the Honda K23A
How much power does the Honda K23A make?
The Honda K23A develops 240 hp and 350 Nm of torque.
How much oil does the Honda K23A take and which one?
Engine oil capacity: 5.2 liters. Recommended oil: 5W-30.
Does the Honda K23A have a timing belt or chain?
The Honda K23A uses a timing chain.
Is the Honda K23A turbocharged?
Yes, the Honda K23A is turbocharged (MHI TD04HL-15T).
Does the Honda K23A need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Honda K23A last?
The typical lifespan of the Honda K23A is ~300 000 km with proper maintenance.
What is the fuel consumption of the Honda K23A?
Acura RDX 2007: city 13.8, highway 10.7, combined 12.4 L/100 km.
What cars was the Honda K23A installed on?
Acura RDX 1 (TB) in 2006 - 2012.
What are the common problems of the Honda K23A?
This turbo engine is very reliable and has virtually no congenital problems. If you neglect the oil change schedule, the turbine will quickly fail. All known problems.
