The 2016 Suburban typically requires Dexos1 Gen 2 certified motor oil, with 5W-30 being the common viscosity specification for most configurations.
Engine options and oil requirements
The 2016 Suburban was offered primarily with the 5.3L EcoTec3 V8, with an optional 6.0L V8 in some configurations. Both engines use Dexos1 Gen 2 approved motor oil. The exact oil capacity varies by engine: about 8 quarts (roughly 7.5 liters) for the 5.3L and slightly more for the 6.0L. Always confirm the correct specification and capacity in your owner's manual or on the vehicle’s information placard.
Dexos1 Gen 2 and viscosity guidelines
GM specifies Dexos1 Gen 2 certified oil for the 2016 Suburban. The typical viscosity recommended for most climates is 5W-30. In regions with extreme temperatures, the manual may allow alternative grades; verify the exact grade for your climate and driving conditions.
Oil capacity and maintenance considerations
The 5.3L EcoTec3 V8 generally holds about 8 quarts (roughly 7.5 liters) of oil with a filter. The 6.0L V8 uses a similar or slightly higher capacity. Use a high-quality oil filter and adhere to GM’s recommended change intervals or the vehicle’s oil life monitor, using Dexos1 Gen 2 oil.
In practice, choosing Dexos1 Gen 2 oil at the correct viscosity (most often 5W-30) and maintaining the recommended fill helps protect the engine and sustain performance across seasons.
Summary
For a 2016 Suburban, use Dexos1 Gen 2 certified motor oil, typically 5W-30, with an oil capacity around 8 quarts for the common 5.3L V8. Always verify the exact engine, capacity, and viscosity in the owner's manual or on the sticker inside the driver's door jamb to ensure you meet GM's specifications for your specific configuration and climate.