Vehicle Questions and Answers
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Depending on your car's model year, the fuel tank size could vary. Take the 2020 BMW X5, for example, which has a fuel tank capacity of 21.9 gallons. It's important to use a minimum fuel grade of AKI89 to prevent engine knocking. However, for optimal performance and fuel efficiency, it's recommended to use AKI91. While it's not required, spending a bit more on higher-grade fuel at the gas station is worthwhile to maximize your vehicle's capabilities. - Scott L.
The BMW X5 can hold up to 21.9 gallons of fuel in its tank.