All eight trim levels of the 2017 Toyota Sienna come with a 3.5L V6 engine, which requires the use of 5.7 quarts of SAE 0W-20 full synthetic motor oil. Adding the tow package also requires the use of a small additional amount of oil, bringing Your total just under 5.9 quarts per oil change. The usage of SAE 5W-20 is also permissible, but not recommended because of the inferior viscosity. In short, oil weight measures the viscosity of oil at certain temperatures. The "0" or "5" measures viscosity at startup temperature, while the "20" refers to viscosity at operating temperature. This means that 5W-20 starts at a disadvantage, potentially leading to premature engine wear. It's always best to go with the oil with the lowest numbers recommended by Your manufacturer.
Max R.
August 29, 2019
The 3.5L V6 engine in the 2017 Toyota Sienna requires 5.7 quarts of 0W-20 synthetic oil, but needs 5.8 quarts if you have the tow package.
The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. VehicleHistory.com
does not research or authenticate any of the Answers provided.