Since 2009, GM’s Korean division has been producing the 1.0-liter Chevrolet B10D1 or LMT engine, which is installed in the company’s most compact models, including the Spark and Matiz. In several markets, this power unit is modified to run on liquefied gas.

The engines in the B series are B10S1, B10D1, B12S1, B12D1, B12D2, and B15D2.
The engine was installed on:
- Chevrolet Beat M300 in 2009 – 2015;
- Chevrolet Spark M300 in 2009 – 2015;
- Daewoo Matiz 3 in 2009 – 2015.
Specifications
| Start of production | 2009 |
| Displacement, cc | 996 |
| Fuel system | distributed injection |
| Power output, hp | 68 |
| Torque output, Nm | 93 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 68.5 |
| Piston stroke, mm | 67.5 |
| Compression ratio | 9.8 |
| Features | VGIS |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.75 |
| Fuel type | petrol |
| Euro standards | EURO 4/5 |
| Fuel consumption, L/100 km (for Chevrolet Spark 2011) — city — highway — combined |
6.6 4.2 5.1 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | – |
Disadvantages of the B10D1 engine
This motor is dependable and can travel up to 250,000 kilometers without experiencing significant malfunctions despite the volume;
The timing chain can extend up to 150,000 km, and if it jumps or breaks, the valve will bend; all common issues are associated with attachments and oil leaks;
There are no hydraulic lifters, and valve clearances must be adjusted every 100,000 kilometers.
