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The type of fuel you should use for your 2018 Dodge Durango depends on the trim level. The base model, GT, SXT, and platinum require regular unleaded gasoline with at least 87 octane. On the other hand, the R/T and SRT editions have different engines and fuel requirements, needing premium gasoline with a minimum of 91 octane, ideally 93 octane. Regardless of the model, all vehicles have a fuel tank capacity of 24.6 gallons, so you won't need to make frequent stops for gas while driving this car.
I own the Durango Citadel Platinum with the 5.7 Hemi engine. The fuel door specifies using mid-grade gasoline or higher, which is also mentioned in the owner's manual. Regular fuel is not advised for this vehicle, but it may vary depending on the specific model you have.
The Durango GT, SXT Citadel, and Anodized Platinum models can run on regular unleaded fuel, while it is suggested to use premium gasoline for the 2018 Dodge Durango R/T and Durango SRT.
Please examine the label located on the driver's side door of your vehicle.
Which type of fuel should I put in my 2018 Dodge Durango Citadel - 87 or 89 octane?