Only the first generation Acura RDX luxury crossover was equipped with the Honda K23A or K23A1 2.3-liter gasoline turbo engine, which was manufactured between 2006 and 2012. This power unit is well-known for its outstanding dynamic performance and dependability.

The K20A and K24A internal combustion engines are also part of the K-series lineup.
The engine was mounted on:
- Acura RDX 1 (TB) in 2006 – 2012.
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 |
Disadvantages of the Honda K23A engine
This turbo engine has almost no congenital issues and is incredibly dependable.
The turbine will soon fail if the oil change schedule is neglected.
The timing chain frequently stretches and begins to rattle after a run of more than 100,000 kilometers.
The front crankshaft oil seal and engine mounts have limited resources.
Every 90,000 kilometers, valve clearances must be changed because there are no hydraulic lifters.
