The General Motors LF1 3.0-liter V6 engine was assembled in the United States and Mexico from 2009 to 2016 and was installed on such popular models as the Cadillac SRX, as well as the Chevrolet Equinox and GMC Terrain. Such a power unit on Opel cars is known under its own index A30XH.
High Feature engine family: L3B, LP9, LF1, LFX, LFY, LGX, LLT, LY7.
Specifications
| Production years | 2009-2016 |
| Displacement, cc | 2994 |
| Fuel system | direct injection |
| Power output, hp | 250 – 275 |
| Torque output, Nm | 285 – 305 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 89 |
| Piston stroke, mm | 80.3 |
| Compression ratio | 11.7 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual VVT |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.7 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Cadillac SRX 2011) — city — highway — combined |
13.8 10.2 11.3 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 185 |
The engine was installed on:
- Buick LaCrosse 2 (GMX353) in 2009 – 2010;
- Cadillac CTS II (GMX322) in 2009 – 2011;
- Cadillac SRX II (GMT267) in 2009 – 2016;
- Chevrolet Captiva 1 (C140) in 2011 – 2015;
- Chevrolet Equinox 2 (GMT192) in 2009 – 2012;
- GMC Terrain 1 (GMT177) in 2009 – 2012;
- Saab 9-4X I (GMT168) in 2010 – 2011.
Disadvantages of the GM LF1 engine
- The main problem of the engine is the capricious direct fuel injection system;
- If you miss the breakdown of the injection pump, then gasoline will enter the lubrication system and the engine will jam;
- It is important to monitor the cooling system; when overheated, the gasket breaks quickly;
- Like all direct injection units, it is prone to carbon deposits on the valves;
- Also here it is often necessary to clean the throttle and adapt it.
