Vehicle Questions and Answers
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The manual for the 2006 Toyota Sienna recommends using Toyota Super Long Life Coolant, but you can also opt for a coolant that is a 50/50 mixture of coolant and deionized water. Just check the label to ensure the right mix. This combination effectively guards against freezing in winter and overheating in summer. The Sienna's coolant capacity is 3.5 quarts.
The 2006 Toyota Sienna uses a pre-mixed 50/50 long-lasting engine coolant and antifreeze that is made by Aisin.