The Buick Encore has a maximum fuel capacity of 14 gallons and the Buick Enclave has a maximum fuel capacity of 22 gallons. Both vehicles are front wheel drive, use regular unleaded, and come with 6-speed shiftable automatic transmissions. Slotting into the Buick SUV lineup beneath the big-sib Enclave and the middle-child Envision, the Encore distills the almost-luxury ambience of its older brothers into a bite-sized niblet. Search over 196 used Buick Encores in Frederick, MD. TrueCar has over 1,125,295 listings nationwide, updated daily. Come find a great deal on used Buick Encores in Frederick today! 2019 Buick Encore Preferred My Buick Encore is perfect for daily drives and road trips. The back seat lays down to fit a ton in the cargo area and the gas mileage is fantastic. I love that I can use CarPlay and the tech is perfect for me. In addition, the interior is sleek and always looks great. Read expert reviews on the 2020 Buick Encore Essence AWD from the sources you trust. Request a dealer quote or view used cars at MSN Autos.