GMO x Mendo Montage A prime choice for more experienced partakers, Mule Fuel tends to grip from the get-go. Often heady at first, deep introspection mellows the mind as limbs loosen with a buoyant buzz. Herbaceous fruit softens a skunky aroma, and velvety exhales reveal a touch of sweet tobacco. While its name may suggest a strong surge of activity, Mule Fuel ultimately melts into total sedation.