GENERAL SERVICE INFORMATION
Engine Oil
12/05
BY Service Manual
3-15
© 2009 Yanmar Marine International
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.
-4°F 14°F 32°F 50°F 68°F 86°F 104°F
(-20°C) (-10°C) (0°C) (10°C) (20°C) (30°C) (40°C)
0W-40
5W-40
0W-30
5W-30
0000005B
122°F
(50°C)
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