Auto engine tune ups are part of what car manufacturers recommend for regular auto maintenance. It is part of the list of services that are laid out in the maintenance guide of every vehicle that has been made. In the U.S. these services were broken down into menu lists. A 15,000 mile service in the early 1970’s consisted of a engine tune up, an oil change and a complete safety check. But in most cases, when a customer would visit an American car dealer or an independent auto repair shop they would see a whole menu posted consisting of Tune up, Oil Change, Shocks, Brake Check ...the list go on. The customer would then chose what they wanted to have done. In the 70’s and 80’s imported cars started to arrive in greater numbers, and along with them came “imported technicians” who were trained to follow the manufacturer's maintenance schedule and be responsible for the whole condition of the vehicle.