GENERAL SERVICE INFORMATION
3TNV88F Service Manual
4-17
Engine Oil
ENGINE OIL
• Only use the engine oil specified. Other engine
oils may affect warranty coverage, cause internal
engine components to seize and/or shorten
engine life.
• Prevent dirt and debris from contaminating the
engine oil. Carefully clean the oil cap/dipstick and
the surrounding area before you remove the cap.
• Never mix different types of engine oil. This may
adversely affect the lubricating properties of the
engine oil.
• Never overfill. Overfilling may result in white
exhaust smoke, engine overspeed or internal
damage.
Engine Oil Specifications
Use an engine oil that meets or exceeds the
following guidelines and classifications:
■ Service categories
• API service categories CF, CF-4 and CI-4
• ACEA service categories E-3, E-4, and E-5
• JASO service category DH-1
■ Definitions
• API classification (American Petroleum Institute)
• ACEA classification (Association des
Constructeurs Européens d’Automobilies)
• JASO (Japanese Automobile Standards
Organization)
Note:
• Be sure the engine oil, engine oil storage
containers, and engine oil filling equipment are
free of sediment and water.
• Change the engine oil after the first 50 hours of
operation and then every 250 hours thereafter.
• Select the oil viscosity based on the ambient
temperature where the engine is being operated.
See the SAE service grade viscosity chart
(Figure 4-5).
• YANMAR does not recommend the use of engine
oil “additives”.
■ Additional technical engine oil
requirements:
The engine oil must be changed when the Total
Base Number (TBN) has been reduced to 1.0
mgKOH/g test method; JIS K-201-5.2-2 (HCI),
ASTM D4739 (HCI).
Engine Oil Viscosity
Select the appropriate engine oil viscosity based on
the ambient temperature and use the SAE service
grade viscosity chart in Figure 4-5.
Figure 4-5
-30°C -20°C -10°C 0 10°C 20°C 30°C
SAE 5W-30
SAE 15W-40
SAE 20
SAE 30
SAE 10W-30
K0000005A05
40°C
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