What type of oil does the Prius use and how much?

The Toyota Prius typically uses 0W-20 synthetic oil, which provides better fuel efficiency and engine protection. The oil capacity varies depending on the model year, but it generally requires around 4.4 to 5.1 quarts (4.2 to 4.8 liters) when including the oil filter. Always refer to the owner’s manual for the most accurate specifications for your specific Prius model.