The 2015 Nissan Armada uses regular unleaded gasoline; that's going to be an 87 octane. It won't ever hurt to put in a higher octane, but You'll get absolutely no benefit from doing so in this vehicle. Your fuel tank capacity on the Armada is 28 gallons, and You have a range of 336 to 364 miles (Depending on if You're using the trim with 4WD or not). The combined miles per gallon of this SUV is 15, witH13 in the city and 19 on the highway. Something to note is that when You use E85 fuel, as You're likely to find in a lot of places now, it makes the mpg suffer: You'll only get 11 combined mpg then, 9 in the city, 14 on the highway.
nad
August 20, 2020
Look at your manual, my manual says nothing lower than octane 91 which is premium gas
Natalie A.
August 29, 2019
The 2015 Nissan Armada uses unleaded regular gasoline.
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