VLS
ACEA heavy-duty sequences released
Mike Bewsey, Chairman, VLS
In May 2022, the European Automobile Manufacturers Association (ACEA) published the 2022 ACEA Oil Sequences for Heavy-Duty Engines. The new sequences address engine developments that are driven by a combination of regulatory and performance needs, complemented by necessary test maintenance requirements.
Two entirely new categories, ACEA E8 and E11, have been introduced to replace the now obsolete ACEA E6 and ACEA E9 categories.
The ACEA E8 category is for highly-rated diesel engines that meet Euro VI and earlier emissions requirements and are operating under very severe conditions, such as significantly extended oil drain intervals. It is suitable for Exhaust Gas Recirculation (EGR) engines, with or without particulate filters, and for engines fitted with NOx Selective Catalyst Reduction (SCR) systems. The new ACEA E8 category is strongly recommended for engines fitted with particulate filters and is designed for use in combination with low-sulphur diesel fuel.
ACEA E11 is recommended for highly rated diesel engines meeting Euro VI, and earlier emissions requirements, running under less severe conditions than the ACEA E8 category. Like ACEA E8, it is suitable for engines with or without particulate filters, for most EGR engines and for most engines fitted with NOx SCR reduction systems. ACEA E11 is strongly recommended for engines fitted with particulate filters and is designed for use in combination with low-sulphur diesel fuel.
The Mack T-13 engine test has been adopted into ACEA E8 and ACEA E11, to achieve a significant boost in oxidation control. The Caterpillar Oil Aeration Test has also been included to test the lubricant’s performance in aeration control.
44 LUBE MAGAZINE NO.170 AUGUST 2022
The ACEA E4 and ACEA E7 categories have been updated with new piston deposit tests. Both categories are intended for older engines complying with Euro V or earlier emissions standards. These engines may be equipped with SCR or EGR but not particulate filters. ACEA E4 is most suitable for very severe operating conditions with significantly extended oil drain intervals, whereas ACEA E7 is suitable for less severe operating conditions.
The ACEA 2022 sequence update raises anti-oxidation performance and piston deposit control with pass levels for the new OM 471 test in E4 and E8 more severe than those previously set. In the E7 category, the OM 501 test has been replaced by the Cat 1N test for piston deposit control. This helps to align the E11 category with the American Petroleum Institute’s API CK-4 specification.
Claims can already be made against the 2022 ACEA Oil Sequences for Heavy-Duty Engines as of 1 May 2022. The 2022 ACEA Oil Sequences for Heavy-Duty Engines will become mandatory for all new claims made from 1 May 2023 onwards.
VLS welcomes the publication of the new ACEA 2022 Heavy-Duty sequences. They provide for a modernisation of the requirements for heavy-duty engines and corresponding engine oil specifications that bring them up to date in the market. They recognise engine developments in this critical area and align the automotive requirements with the latest heavy-duty engine emission standards. Products conforming to the new specifications will provide performance benefits to operators of heavy-duty vehicles.
LINK
www.ukla-vls.org.uk
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