The ACEA Oil Sequences define the minimum quality level for engine lubricants used in service fill in gasoline engines, light duty diesel engines and heavy-duty diesel engines.
The ACEA 2022 update ensures that heavy-duty engine lubricants used in service fill fulfil the demands of increasingly advanced developments in engine and after treatment system technology. The update represents a significant advance in performance levels and highlights the ongoing development challenges facing heavy-duty diesel commercial vehicle manufacturers due to the complexity of vehicle technology. The introduction of new tests and categories brings a focus on enhanced oxidation, piston cleanliness and aeration performance in select areas.
ACEA 2022 was introduced on the 1st May 2022 and becomes mandatory for all new performance claims made after 1st May 2023. Oil marketers may still make claims against the previous ACEA 2016 edition of the oil sequences until 1st May 2024. After this date, all formulations making a performance claim must do so to the requirements of the 2022 edition.
As OEMs strive to reduce emissions whilst increasing efficiency and maintaining durability new challenges emerge, which the engine lubricant plays a key role in overcoming. The inclusion of enhanced piston cleanliness performance testing and increased alignment with key OEM and industry specifications in select categories makes the release of ACEA 2022 an important upgrade and milestone for the heavy-duty engine lubricant market.
ACEA 2022 sees the removal of ACEA E6 and ACEA E9 and the introduction of two new replacement categories, ACEA E8 and ACEA E11.
- ACEA E8 is a new category which brings an increased focus to enhanced piston cleanliness, with the introduction of the OM471 test, alongside oxidation and aeration performance with the inclusion of established ASTM engine tests developed for API CK-4.
- ACEA E11 is a new category which brings an increased focus on oxidation and aeration performance with the inclusion of established ASTM engine tests developed for API CK-4.
- ACEA E4 and ACEA E7 remain to serve the requirement of legacy engines, with changes made to piston cleanliness test options in both.