In the recent Service Letter - SL2020 694 - MAN-ES does not mention any BN40 products in the Category II table. Which product do you recommend for Mark 9 engines and higher?
Currently neither Talusia Universal nor any Cat. II 40 BN cylinder oils are listed (May 2020).
Our recommendation for Mark 9 engines and higher is to use Talusia Universal and Cat. II 100 BN cylinder oil with alternation (if necessary) or with the cylinder oil available as according to the recommendations in MAN-ES Service Letter - SL2019-671.