The 2021 Cadillac XT6's oil capacity depends on the engine: about 5 quarts for the 2.0L turbo and about 7 quarts for the 3.6L V6, both with an oil filter. Always confirm with the owner's manual or your dealer for your exact configuration.
Engine options and corresponding oil capacities
The XT6 was offered with two engines in 2021. Each powerplant uses a specific oil capacity, so selecting the correct quantity is essential for proper lubrication and maintenance.
2.0L Turbocharged inline-four
Oil capacity: Approximately 5 quarts (4.7 L) of engine oil, including the oil filter.
Note: Use a Dexos1 Gen 2 certified synthetic oil. Check the owner's manual for the exact viscosity recommended for your climate and driving conditions.
3.6L V6
Oil capacity: Approximately 7 quarts (6.6 L) of engine oil, including the oil filter.
Note: Use a Dexos1 Gen 2 certified synthetic oil. Check the owner's manual for the exact viscosity recommended for your region and operation.
Summary
In brief, the 2021 XT6 requires 5 quarts of oil with filter if it has the 2.0L turbo engine, or about 7 quarts with filter if equipped with the 3.6L V6. Always refer to the owner's manual or dealer for the precise specification based on your configuration.