The actual schedule of car maintenance varies depending on the year, make, and model of a car, its driving conditions, and driver behavior. Carmakers recommend the so-called extreme or the ideal service schedule based on impact parameters.Service worker may refer to: Social service worker, a person engaged in social work. Pink-collar worker, a person in the service industry whose labour is related to customer interaction, entertainment, sales or other service-oriented work.Mechanical parts that may cause the car to cease transmission or prove unsafe for the road are also noted and advised upon.