The 2.0-liter Chevrolet Z20S, Z20DMH, or LLW engine was manufactured between 2006 and 2011 and was fitted to a number of the company’s well-known models, including the Cruze, Captiva, and Epica. In essence, this power unit is a VM Motori RA 420 SOHC 16V diesel engine.
The Z series also includes engines: Z20S1, Z20D1 and Z22D1.
The engine was installed on:
- Chevrolet Captiva C100 in 2006 – 2011;
- Chevrolet Cruze 1 (J300) in 2009 – 2010;
- Chevrolet Epica V250 in 2007 – 2011;
- Opel Antara in 2007 – 2010.
Specifications
| Production years | 2006-2011 |
| Displacement, cc | 1991 |
| Fuel system | Common Rail |
| Power output, hp | 150 |
| Torque output, Nm | 320 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 92 |
| Compression ratio | 17.5 |
| Features | intercooler |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | VGT |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.75 |
| Fuel type | diesel |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Chevrolet Captiva 2009) — city — highway — combined |
8.8 6.2 7.2 |
| Engine lifespan, km | ~380 000 |
Disadvantages of the Z20S engine
On specialized forums, this engine is frequently commended rather than chastised; it is not regarded as problematic;
This one dislikes poor diesel fuel, just like any other contemporary common rail diesel;
The injectors are typically the fuel equipment’s weakest point;
The valve bends when the timing belt, which has a limited resource of 50–60 thousand kilometers, breaks.