The recommended oil is Dexos1 Gen 2 certified 5W-30 motor oil, preferably full synthetic.
For GM's 5.3-liter V8 in the 2016 Sierra, using oil that meets Dexos1 Gen 2 ensures compatibility with the engine and emissions controls. The key choices are the viscosity (5W-30), the Dexos1 Gen 2 specification, and the engine’s oil capacity and replacement interval. Always check the owner's manual or GM's service information for your exact configuration and driving conditions.
Oil specifications for the 5.3L V8 in the 2016 Sierra
Here are the essential requirements you should follow when selecting oil for this engine.
- Viscosity and certification: 5W-30 Dexos1 Gen 2 certified motor oil.
- Oil type: Synthetic or synthetic-blend oil that meets the Dexos1 Gen 2 specification.
- Brand and label: Ensure the product explicitly states Dexos1 Gen 2 approval on the bottle.
- Oil capacity: Approximately 8 quarts (about 7.5–8 quarts with a new filter) for the 5.3L V8 engine in most Sierra models.
- Change interval: Follow GM’s Oil Life Monitoring System; typically about 7,500 miles with synthetic oil, or as indicated by the system; conventional oil requires closer to 5,000 miles or the system’s guidance.
Using the correct oil supports engine longevity, performance, and fuel efficiency, and helps maintain warranty coverage when using Dexos1 Gen 2 approved oils.
Practical considerations and tips
In addition to meeting Dexos1 Gen 2 5W-30 specifications, consider your climate, towing, and driving style when planning oil changes. If you regularly tow heavy loads or drive in extreme heat or cold, adjust maintenance intervals per the Oil Life Monitor and GM guidance. Always use a quality oil filter aligned with the oil you choose and replace it with every oil change.
Common questions
- Can I use non-Dexos oil in a 2016 Sierra 5.3? Not recommended. Dexos1 Gen 2 oil is specified for engine protection and warranty compliance.
- Is 5W-30 the only acceptable viscosity? For this engine, GM’s standard specification is 5W-30 Dexos1 Gen 2; consult the owner’s manual if a different viscosity is approved for your climate or driving conditions.
If you still have questions about the right oil for your Sierra, consult the owner's manual or your GM dealership for the latest recommendations.
Summary
In summary, the 2016 GMC Sierra with the 5.3L V8 uses Dexos1 Gen 2 certified 5W-30 motor oil, preferably full synthetic, with about 8 quarts of capacity and oil changes guided by GM’s Oil Life Monitoring System. Following these guidelines helps optimize engine protection and performance.