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The 2014 Dodge Durango requires regular unleaded fuel with an octane rating of 87 or higher, but it is strongly recommended to use 89 octane gasoline whenever possible. This fuel option, considered medium grade, is readily available at most service stations across the United States and remains affordable. Despite being slightly more expensive than the lowest grade, it offers improved quality. The Durango's fuel tank can hold up to 24.7 gallons and delivers decent gas mileage, reaching up to 18 miles per gallon in city driving and up to 25 miles per gallon on highways.
The 2014 Dodge Durango with a 3.6L engine requires regular 87 octane fuel. If you have the 5.6L engine, you can still use 87 octane, but it's advised to opt for the higher-grade 89 octane fuel for optimal performance.