Yanmar 4JH5E - Engine Oil; Engine Oil Specifications

BEFORE YOU OPERATE
JH Series Operation Manual 39
12/05
5. Continue pumping until a solid stream
of fuel with no air bubbles begins to
flow.
6. Tighten the air bleed screw.
NOTICE
Never use an engine starting aid such as
ether. Engine damage will result.
ENGINE OIL
Engine Oil Specifications
Using engine oil that does not meet or
exceed the following guidelines or
specifications may cause seizure of parts,
abnormal wear and shorten engine life.
Service Categories
Use an engine oil that meets or exceeds
the following guidelines and classifications:
• 4JH4-TE and 4JH4-HTE1, 4JH4-HTE:
API Service Categories CD, CF, CF-4
and CI-4.
• 3JH5E and 4JH5E:
API Service Category CF, CF-4 and
CI-4.
• SAE Viscosity:
10W-30, 15W-40. Engine oil 10W-30
and 15W-40 can be used throughout the
year.
NOTICE
• Be sure the engine oil, engine oil storage
containers and engine oil filling
equipment are free of sediment or water.
• Change the engine oil after the first 50
hours of operation and then at 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 7).
• Yanmar does not recommend the use of
engine oil “additives”.
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