Overview of the L87 Recall
The GMC and Chevy 6.2L L87 V8 has experienced widespread reports of lifter collapse, oil thinning, ticking, and excessive heat-related wear. These issues have prompted multiple service bulletins and recall actions.
Common Symptoms
- Lifter noise or ticking
- Oil consumption
- Low oil pressure when hot
- Rough idle
- Heat soak instability
Why Viscosity Matters More for the L87
The L87 runs hot, uses GDI injection, and sees high loads in towing scenarios. Light oils such as 0W-20 often shear down quickly, leading to metal-to-metal contact.
Recommended Oils for the L87
Why 0W-40 Protects Better
- Higher HTHS stability
- Less viscosity loss under heat
- Better wear resistance
- More robust under towing and payload stress
Maintenance Intervals
- Severe duty: every 3,000–4,000 miles
- Mixed driving: 5,000–6,000 miles
- Light duty: per factory spec