The recommended oil is Dexos1 Gen 2 synthetic oil, with 0W-20 being the preferred viscosity for the 2016 Tahoe’s 5.3-liter V8.
Oil specification for the 5.3L V8
The 2016 Tahoe’s 5.3L EcoTec3 V8 is designed to run on Dexos1 Gen 2 certified engine oil. For everyday driving, the most common and recommended viscosity is 0W-20, which supports fuel efficiency and cold-start performance. If 0W-20 isn’t available, Dexos1 Gen 2 certified oil in a thicker grade, such as 5W-30, is generally acceptable, though you should confirm this with GM documentation or your dealer depending on climate and towing needs.
Before listing the approved oil options, here are the official choices and guidance.
- Dexos1 Gen 2 certified synthetic oil, 0W-20 — The standard recommendation for normal operation across most climates.
- Dexos1 Gen 2 certified synthetic oil, 5W-30 — Acceptable if 0W-20 isn’t available or for certain conditions; confirm with your manual/dealer for your use case.
Here are the approved oil options for this engine:
In practice, 0W-20 is the best first choice for daily driving, with 5W-30 serving as a backup option in extreme temperatures or when specifically advised by GM literature.
Notes and verification
Always check your owner's manual or consult a Chevrolet dealer for the exact specification for your vehicle, as requirements can vary by market and production date. Look for the Dexos1 Gen 2 certification on the oil container to ensure compatibility.
Summary
The 2016 Tahoe’s 5.3L V8 uses Dexos1 Gen 2 synthetic oil, with 0W-20 as the preferred viscosity. If 0W-20 isn’t available, Dexos1 Gen 2 certified 5W-30 is generally acceptable. Always verify with the owner's manual or a dealer for any exceptions or regional guidance.