The ACEA European Oil Sequences for Service-fill Oils are the general requirements for oil sequences for gasoline, light-duty diesel, and heavy-duty diesel engines. The latest revision includes links to the new ACEA Light-Duty Oil Sequence 2021 and the ACEA Heavy-Duty Oil Sequence 2016 Rev3 document. These documents should be read in conjunction with the latest versions of the ACEA Oil Sequences for Service-fill Oils for Gasoline engines, Light-Duty Diesel engines, and Heavy-Duty Diesel engines. The periods during which valid claims can be made for oils meeting those specifications and the full specifications of those respective ACEA Oil Sequences are detailed in those two documents.