| abstract |
A lubricating composition comprising a base oil and one or more additives, wherein the composition has:n a sulphated ash content (according to ASTM D 874) of at least 0.1 wt. % and at most 0.60 wt. %, preferably at most 0.55 wt. %, more preferably at most 0.50 wt. %; and a total base number (TBN) value (according to ASTM D 2896) of at least 8.0 mg KOH/g and at most 15.0 mg KOH/g. |