GENERAL SERVICE INFORMATION Engine Oil 12/05 Engine Oil Viscosity Select the appropriate engine oil viscosity based on the ambient temperature shown in the SAE Service Grade Viscosity Chart (Figure 3-11) . Figure 3-11 Figure 3-11 Note: Yanmar recommends using genuine Yanmar Marine oil, specifically formulated for the BY2 engine. See Acceptable Engine Oil on page 3-16 . NOTICE: If the equipment will be operated at temperatures outside the limits shown, special lubricants or starting aids must be used.
© 2009 Yanmar Marine International 0W-30 5W-30 -40 0W 0W -40 5W 5W -40 -4°F 14°F 32°F 50°F 68°F 86°F 104°F 122°F (-20°C) (-10°C) (0°C) (10°C) (20°C) (30°C) (40°C) (50°C) 0000005B BY Service Manual 3-15