Castrol Service. Here at K and S Auto's Ltd we offer a one stop service, from purchasing to servicing. Our professionalism and the value for money we offer is the reason why we get so much repeat business. Our technical expertise is registered with the Institute of Motor Industry, Trust My Garage & Trading standards approved with over 35 years of experience. We run a small business which allows us to offer great prices on repairs, with assurances on all our parts as we are part of 5 national service providers: Castrol Service, Eurorepar, Servicesure & AA Prestige Fleet Servicing, RAC approved. Electronic service records updated for many manufacturers. We provide a personalised servicing package for all makes and models.