Yanmar 4TNV98, Service Manual

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4TNV98 & 4TNE98 Diesel Engine Section 1. General Service Information 16
Engine Oil
CAUTION
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 CD or higher
• 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 arefree
of sediment and water.
• Change the engine oil after the first 50 hours of
peration and then every 500 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 4-4a)
• 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 4-4a.
Figure 4-4a