Vehicle Questions and Answers
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As a Toyota Prius driver, you may wonder about the kind of fuel your car needs to run smoothly. The Prius requires regular unleaded gasoline with an octane rating of 87 or higher. However, in high-altitude areas, you can use octane 85 fuel without any harm to your engine when driving in the mountains instead of on flat land or highways. If your car is rated for octane 87 or higher, you can use any type of fuel ranging from the cheapest and most common to premium fuels with a rating of 90 or above without any problems.
The Toyota Prius is suggested to be fueled with unleaded 87 octane gasoline.