def METHOD_NAME(oil):
    '''
    Fresh oil: One viscosity. Score = 0.5
    '''
    if len(oil.sub_samples) > 0:
        ss = oil.sub_samples[0]
        kvis = ss.physical_properties.kinematic_viscosities
        dvis = ss.physical_properties.dynamic_viscosities
        for v in kvis:
            if (is_measurement_good(v.viscosity) and
                    is_measurement_good(v.ref_temp)):
                return 0.5
        for v in dvis:
            if (is_measurement_good(v.viscosity) and
                    is_measurement_good(v.ref_temp)):
                return 0.5
    return 0.0