The 6.2-liter V8 GM L86 engine was produced by the American concern from 2013 to 2020 and was installed on popular pickup trucks and SUVs such as the Chevrolet Tahoe or Cadillac Escalade. An updated modification of such a power unit is known under its own index L87.
Vortec line: LR4, LM7, LY2, LY5, LFA, L92, L86.
Specifications
| Production years | 2013-2020 |
| Displacement, cc | 6162 |
| Fuel system | direct injection |
| Power output, hp | 409 – 426 |
| Torque output, Nm | 610 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 103.25 |
| Piston stroke, mm | 92 |
| Compression ratio | 11.5 |
| Features | OHV |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | yes |
| Turbocharging | no |
| Recommended engine oil | 0W-20 |
| Engine oil capacity, liter | 7.6 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Chevrolet Tahoe 2017) — city — highway — combined |
18.3 10.6 13.4 |
| Engine lifespan, km | ~300 000 |
The engine was installed on:
- Cadillac Escalade 4 (GMTK2XL) in 2014 – 2020;
- Chevrolet Silverado 3 (GMTK2RC) in 2013 – 2019;
- Chevrolet Suburban 11 (GMTK2YC) in 2014 – 2020;
- Chevrolet Tahoe 4 (GMTK2UC) in 2014 – 2020;
- GMC Sierra 4 (GMTK2RG) in 2013 – 2019;
- GMC Yukon 4 (GMTK2UG) in 2014 – 2020;
- GMC Yukon XL 4 (GMTK2YG) in 2014 – 2020.
Disadvantages of the GM L86 engine
- The main problem here is the sticking of the hydraulic lifters and the wear of the camshaft.
- The cause can be either bad oil or a broken hydraulic lifter cassette.
- On specialized forums, they complain about weak valve springs, sometimes they simply burst.
- Monitor the condition of the pump and radiators, as the motor is very afraid of overheating.
- Oil consumption is also regularly encountered due to poor crankcase ventilation.
