Engine GM LGX

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 engine family: L3B, LP9, LF1, LFX, LFY, LGX, LLT, LY7.


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
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.

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