The authorized oil for the 2010 Toyota Highlander is any brand with an API certification mark and a viscosity grade of 5W-20 or 0W-20 sae. The SUV has an engine oil capacity of 6.4 quarts (6.1 liters) for the 3.5L v6 as stated by the manufacturer. The recommended oil replacement service interval iS3500 to 5000 miles on average or every 6 months. You can use conventional or synthetic oil in the vehicle but do not mix them. The conventional fluid is cheaper then the full synthetic but You will have to service the vehicle more often with the conventional because the viscosity of the fluid does not last as long and will lose its effectiveness for keeping the engine components lubricated.
Mara D.
January 2, 2020
The 2010 Toyota Highlander 2.7L 4-cylinder engine oil capacity is 4.7 US quarts (4.4 liters). The 2010 Toyota Highlander 3.5L V6 engine oil capacity is 6.4 US quarts (6.1 liters). Toyota advises to use a Toyota Genuine Motor Oil or equivalent to satisfy the ILSAC multigrade and 5W-20 or 0W-20 viscosity for the 2010 Toyota Highlander 2.7L 4-cylinder engine. Toyota advises to use a Toyota Genuine Motor Oil or equivalent to satisfy the ILSAC multigrade and 5W-20 viscosity for the 2010 Toyota Highlander 3.5L V6 engine.
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