Oil capacity is 6.5 litres.
To help obtain optimum engine performance and to provide maximum protection, the engine
requires engine oil with a rating of HD-SAE-API CG-4, CH-4.
Mercury MerCruiser strongly recommends the use of:
• Mercury Diesel Engine Oil
This oil is specially blended 15W-40 oil with Marine Additives, for all temperature operation.
It exceeds requirements for API CH-4, CF-4, CG-4 and CF-2 oils.
Other all temperature operation 15W-40 oils approved by Mercury Marine and Marine
• Shell Myrina
• Texaco Ursa Super TD
• Veedol Turbostar
• Wintershall Multi-Rekord
• Wintershall Viva 1
Thats what the book says!!