A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0. The predistortion circuit comprises a distortion circuit which utilizes the non-linear current flowing through at least one diode, to provide a desired amount of signal attenuation bandwidth. The method includes masking at least one of the plurality of apertures with a plug comprising a removable material. In this inflation and deployment of the airbag, the airbag is inflated and deployed quickly, smoothly and reliably in a relatively narrow space between the inner surface of the side portion of the vehicle body and the passenger. The method then computes a fault density value, random defects and systematic defects are computed. When unlocked, the flap grants an animal access to the through-way.