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Continued from page 24


Deleted Tests: ACEA removed the two Daimler’s OM 646 for diesel wear and biodiesel compatibility due to shortage in hardware that could pose a risk for claims ACEA 2021 during the lifecycle of these sequences. According to EELQMS rules, if two tests required for ACEA oil sequences are not available, lubricant manufacturers can’t claim ACEA.


Additional Bench Tests: ACEA introduced TBN requirement based on ASTM D4739, however, there are no limits assigned and results are to be reported only.


Figs (D) & (E) below depict the difference in performance of different categories included in ACEA 2021 LD Oil Sequences:


Table B: Engine Tests Requirements for ACEA 2021 LD Sequences


Continued on page 28 26 LUBE MAGAZINE NO.165 OCTOBER 2021


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