Bachelor Thesis New Trends in Automotive Engine Oils deals with viscosity and performance classifications of engine oils that are available on our market. There are also mentioned classes of performance classification API and ACEA forpetrol and diesel engines. Furthermore, the company's standards for vehicle manufacturers such as Volkswagen and Mercedes Benz are included in thiswork. There are also other standards, which are also mentioned in thiswork. In more detail, this work describes the composition of engine oils and conditionsfor use. The work is also complemented by a sub-chapter of additives that performs a very important function in this sector. Another part of this work is focused on theis sue of storage and handling of engine o...