The recommended oil is Dexos1 Gen 2 certified 0W-20 full-synthetic motor oil. The engine holds about 8 quarts of oil with a filter when serviced.
The 2017 GMC 5.3 refers to the 5.3-liter EcoTec3 V8 that powers trucks and SUVs such as the GMC Sierra 1500 and certain Yukon models. GM specifies Dexos1 Gen 2 0W-20 as the standard lubricant for this engine, designed for optimal performance across a wide range of temperatures and driving conditions. Always verify with the owner's manual or a GM dealer, as regional variations or special editions may differ.
Oil specification for the 2017 GMC 5.3
The following list summarizes the official oil specification and practical notes for this engine.
- Oil type: Dexos1 Gen 2 certified, full-synthetic motor oil
- Viscosity: 0W-20 (optimized for the engine’s tolerances and climate range)
- Oil capacity: Approximately 8 quarts (with filter) per service
Using the recommended Dexos1 Gen 2 0W-20 oil helps maintain engine protection, fuel economy, and warranty compliance.
Why Dexos1 Gen 2 0W-20?
Dexos1 Gen 2 is GM's oil specification designed for modern engines. It provides strong low-temperature flow, improved protection against deposit formation, and compatibility with the vehicle’s oil-life monitoring system. Choosing the correct viscosity and certification helps ensure the engine performs as designed and preserves warranty terms.
Maintenance and oil-change intervals
Oil-change intervals depend on driving conditions and the vehicle’s oil-life monitor. For many GM vehicles using Dexos1 Gen 2 0W-20, the recommended interval is about 7,500 miles under normal driving, with more frequent changes under severe service. Always follow the oil-life indicator and the owner's manual for your specific vehicle.
- Follow the vehicle’s oil-life monitor for changes—this adapts to driving conditions and usage.
- Use only Dexos1 Gen 2 0W-20 full-synthetic oil; avoid mixing with non-Dexos-certified oils.
- Replace the oil filter with every oil change.
Sticking to the recommended oil and change schedule helps maximize engine longevity and performance.
Summary
For a 2017 GMC vehicle equipped with a 5.3-liter V8, use Dexos1 Gen 2 certified 0W-20 full-synthetic motor oil, approximately 8 quarts with a filter. Always consult the owner's manual or your local GM dealer for model-specific variations and adhere to the vehicle’s oil-life monitor to determine the ideal change interval.