Service Letter SL2013-571/JAP Cylinder Lubrication

Our guidelines on cylinder lubrication of MAN B&W low speed engines have called for an update in response to the below development:
recent changes in operational patterns towards lower-load operation development of new cylinder oils aiming at being better able to cater for a larger variation of fuel oil sulphur contents the general development of engines towards larger stroke-to-bore ratios and changed process parameters triggered by environmental compliance rules.

Concerns
All ME/ME-C/ME-B/ME/MC/MC-C and ME-GI engines with electronically controlled lubricators.
Summary
New cylinder oil lubrication recommendation.
Guiding ACC values for all engines: ACC range 0.20-0.34 g/kWh x S%, minimum 0.60 g/kWh.