The 2.5-liter General Motors LKW gasoline engine was produced in the United States from 2013 to 2019 and was installed only on the tenth generation of the Chevrolet Impala sedan and on the eighth generation of the Malibu. This unit was distinguished by the presence of a proprietary iVLC valve lift adjustment system.
Ecotec family:
1st gen – LSJ, L61;
2nd gen – LDK, LHU, LNF, LAF, LEA, LE5, LE9;
3rd gen – LSY, LTG, LCV, LKW.
Specifications
| Production years | 2013-2019 |
| Displacement, cc | 2457 |
| Fuel system | direct injection |
| Power output, hp | 196 |
| Torque output, Nm | 252 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 88 |
| Piston stroke, mm | 100.8 |
| Compression ratio | 11.3 |
| Features | iVLC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual VVT |
| Turbocharging | no |
| Recommended engine oil | 5W-20 |
| Engine oil capacity, liter | 4.7 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Chevrolet Impala 2014) — city — highway — combined |
11.2 7.5 9.3 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 152 |
The engine was installed on:
- Chevrolet Impala 10 (GMX352) in 2013 – 2019;
- Chevrolet Malibu 8 (V300) in 2013 – 2015.
Disadvantages of the GM LKW engine
- They scold him only for floating idle speeds or glitches of the Start-Stop system.
- As with all direct injection engines, the intake valves quickly overgrow with soot.
- You can also find several complaints about lubricant leaks through the oil pressure sensor.
- There is nothing to say about the operation of the iVLC system yet, it has not yet broken down for anyone.
Frequently asked questions about the GM LKW
How much power does the GM LKW make?
The GM LKW develops 196 hp and 252 Nm of torque.
How much oil does the GM LKW take and which one?
Engine oil capacity: 4.7 liters. Recommended oil: 5W-20.
Does the GM LKW have a timing belt or chain?
The GM LKW uses a timing chain.
Is the GM LKW turbocharged?
No, the GM LKW is naturally aspirated.
Does the GM LKW need valve clearance adjustment?
No, the GM LKW has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the GM LKW last?
The typical lifespan of the GM LKW is ~300 000 km with proper maintenance.
What is the fuel consumption of the GM LKW?
Chevrolet Impala 2014: city 11.2, highway 7.5, combined 9.3 L/100 km.
What cars was the GM LKW installed on?
Chevrolet Impala 10 (GMX352) in 2013 - 2019; Chevrolet Malibu 8 (V300) in 2013 - 2015.
What are the common problems of the GM LKW?
They scold him only for floating idle speeds or glitches of the Start-Stop system. As with all direct injection engines, the intake valves quickly overgrow with soot. All known problems.
