The engine in most Buick Enclave 3.6 L V6 models typically requires about 5.7 quarts of engine oil (roughly 5.4 liters) for a full oil change with a new filter. Some sources and model years may list up to 6 quarts; always verify with your owner's manual or GM service data for your exact configuration.
Oil capacity overview
The Enclave uses a 3.6 L V6 that spans several model years and variants. While the baseline is generally around 5.7 quarts with a filter, exact figures can vary slightly by engine family and year.
- Typical capacity with a new oil filter: about 5.7 quarts (5.4 liters).
- Some service data and dealer notes reference up to 6 quarts (5.7 liters) including the filter; actual capacity depends on the specific engine variant and model year.
When performing an oil change, use the baseline figure as your starting point and verify the level with the dipstick after adding oil.
Oil change (self-service) guide
If you’re performing your own oil change, this concise sequence covers the essential steps. Always consult the manual for torque specs and any year-specific notes.
- Prepare supplies: the correct grade and amount of oil, a new oil filter, a drain pan, jack stands or ramps, a socket/wrench, and rags for cleanup.
- Warm the engine for a few minutes to loosen oil, then turn off and safely lift the vehicle for access to the drain plug.
- Place the drain pan beneath the oil pan and remove the drain plug to drain the old oil completely.
- Remove and replace the oil filter, applying a light coat of new oil to the gasket.
- Reinstall the drain plug, then add the recommended amount of oil (start with about 5.7 quarts if using the typical capacity) and refit the dipstick.
- Start the engine and let it run for a minute, then turn off and check for leaks and recheck the oil level with the dipstick; add oil as needed to reach the proper level.
After completing the routine, ensure the oil level is within the marked range and dispose of used oil and filters according to local regulations.
Oil type and maintenance guidelines
Recommended oil viscosity and approvals
For the Buick Enclave 3.6 L V6, use an engine oil that meets GM Dexos1 Gen 2 approvals when available, typically 5W-30 for most climates. In some conditions and model years, 5W-30 synthetic is recommended; always follow the engine’s owner manual or the service data for your market.
Change intervals depend on operating conditions and oil type. Synthetic oil is often recommended for longer intervals, while conventional oil requires more frequent changes. Check the owner’s manual for the exact interval under your driving conditions.
Summary
In short, plan on about 5.7 quarts (5.4 liters) of engine oil for a typical full oil change on most Buick Enclave 3.6 L V6 models, with a new filter. Some configurations list a maximum of 6 quarts depending on variant. Always verify exact capacity and oil type in your owner’s manual or GM service data, and confirm by checking the dipstick after refilling.