The appeal of the Softail? Deluxe model gets stronger with each passing year. 2017 Harley-Davidson Softail? Deluxe FLSTN Softail Deluxe Pure nostalgic beauty wrapped around the modern power of a High Output Twin Cam 103B? ? engine. (3.3 l) with filter Motorcycles Cruiser DX051579846816690015315 DX1 . Engine: - Oil Capacity: 3.5 qt...