The General Motors LGX 3.6-liter V6 engine has been produced at the Michigan plant since 2015 and is installed on such popular models as the Cadillac XT5, XT6, CT6, and the Chevrolet Camaro. The modification of this unit for Chevrolet Colorado and GMC Canyon pickups has the LGZ index.
High Feature family: L3B, LP9, LF1, LFX, LFY, LGX, LLT, LY7.
Specifications
| Production years | since 2015 |
| Displacement, cc | 3564 |
| Fuel system | direct injection |
| Power output, hp | 310 – 335 |
| Torque output, Nm | 365 – 385 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 95 |
| Piston stroke, mm | 85.8 |
| Compression ratio | 11.5 |
| 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 5/6 |
| Fuel consumption, L/100 km (for Cadillac XT5 2018) — city — highway — combined |
14.1 7.6 10.0 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 180 |
The engine was installed on:
- Buick LaCrosse 3 (P2XX) in 2017 – 2019;
- Buick Regal 6 (E2XX) in 2017 – 2020;
- Cadillac ATS I (A1SL) in 2015 – 2019;
- Cadillac CTS III (A1LL) in 2015 – 2019;
- Cadillac CT6 I (O1SL) in 2016 – 2020;
- Cadillac XT5 I (C1UL) since 2016;
- Cadillac XT6 I (C1TL) since 2019;
- Chevrolet Blazer 3 (C1XX) v 2018;
- Chevrolet Camaro 6 (A1XC) since 2015;
- GMC Acadia 2 (C1XX) since 2016.
Disadvantages of the GM LGX engine
- The only known weak point of the unit is the short-lived thermostat;
- It is worth noting the frequent glitches of the start-stop system, as well as temperature sensor failures;
- Like all direct injection engines, it is prone to valve deposits;
- Also on specialized forums they regularly complain about leaks in valve seals.
Frequently asked questions about the GM LGX
How much power does the GM LGX make?
The GM LGX develops 310 - 335 hp and 365 - 385 Nm of torque.
How much oil does the GM LGX take and which one?
Engine oil capacity: 5.7 liters. Recommended oil: 5W-30.
Does the GM LGX have a timing belt or chain?
The GM LGX uses a timing chain.
Is the GM LGX turbocharged?
No, the GM LGX is naturally aspirated.
Does the GM LGX need valve clearance adjustment?
No, the GM LGX has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the GM LGX last?
The typical lifespan of the GM LGX is ~300 000 km with proper maintenance.
What is the fuel consumption of the GM LGX?
Cadillac XT5 2018: city 14.1, highway 7.6, combined 10.0 L/100 km.
What cars was the GM LGX installed on?
Buick LaCrosse 3 (P2XX) in 2017 - 2019; Buick Regal 6 (E2XX) in 2017 - 2020; Cadillac ATS I (A1SL) in 2015 - 2019; Cadillac CTS III (A1LL) in 2015 - 2019; Cadillac CT6 I (O1SL) in 2016 - 2020; Cadillac XT5 I (C1UL) since 2016 and 4 more (see the full list above).
What are the common problems of the GM LGX?
The only known weak point of the unit is the short-lived thermostat. It is worth noting the frequent glitches of the start-stop system, as well as temperature sensor failures. All known problems.
