About 6.4 quarts (6.1 liters) of engine oil, including a new oil filter.
For context, the 2007 Sienna uses Toyota's 2GR-FE 3.5-liter V6. The official capacity with a filter is 6.4 quarts (6.1 liters); however, actual amounts can vary slightly depending on factors like the exact filter and whether any oil cooler lines are present. Always verify the level with the dipstick after a fill and consult the owner's manual for your specific vehicle's requirements.
Engine and capacity
The 2007 Sienna's powertrain is the 2GR-FE 3.5-liter V6. The capacity of this engine, including the oil filter, is 6.4 quarts (6.1 liters), a figure commonly cited in Toyota service data and owner manuals for this engine family. Some minor variations can occur in the field.
Oil grade and viscosity
Typical recommendations for the 2GR-FE in this era are 5W-20 or 5W-30, depending on climate and driving conditions. Always follow the spec listed in your owner's manual or on the oil filler cap for your vehicle's exact requirement.
Practical guidance for oil changes
When performing an oil change, replace the filter, pour in about 6.4 quarts (6.1 L), then run the engine a minute and recheck the level with the dipstick. Add small amounts if needed to reach the Full mark—avoiding overfilling, which can cause issues.
Summary
The 2007 Toyota Sienna with the 3.5-liter V6 requires roughly 6.4 quarts (6.1 liters) of engine oil with a new filter. Confirm exact capacity and grade from your owner's manual and dipstick readings, since minor variations can occur between individual vehicles and filter brands.