From 2013 until 2020, the American company produced the 6.2-liter V8 GM L86 engine, which was fitted to well-known SUVs and pickup trucks like the Cadillac Escalade and Chevrolet Tahoe. An updated version of this type of power unit has its own index, L87.
LR4, LM7, LY2, LY5, LFA, L92, and L86 are the Vortec line.
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 hydraulic lifters’ sticking and the camshaft’s wear are the primary issues here.
A damaged hydraulic lifter cassette or poor oil could be the reason.
They complain about weak valve springs on specialized forums; occasionally, they just burst.
The motor is terrified of overheating, so keep an eye on the pump and radiators.
Inadequate crankcase ventilation is another common cause of oil consumption.