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BEFORE YOU OPERATE
6SY Operation Manual
41
Engine Coolant Specifications
Use a Long Life Coolant (LLC) that meets
or exceeds the following guidelines and
specifications:
• ASTM D6210, D4985 (US)
• JIS K-2234 (Japan)
• SAE J814C, J1941, J1034 or J2036
(International)
Note: In the U.S., LLC is required for
the warranty to be valid.
Coolant (Closed Cooling System)
IMPORTANT
Always add LLC to soft
water - especially when operating
in cold weather. Without LLC,
cooling performance will decrease
due to scale and rust in the cooling
system. Water alone may freeze
and form ice; it expands
approximately 9% in volume.
Use the proper amount of coolant
concentrate for the ambient
temperature as specified by the
LLC manufacturer. LLC
concentration should be a
minimum of 30% to a maximum of
60%. Too much LLC will decrease
the cooling efficiency also.
Do not mix different types or
brands of LLC or a harmful sludge
may form.
Do not use hard water.
Water should be clean and free
from sludge or particles.
A
CAUTION
COOLANT HAZARD!
• Wear eye protection and
rubber gloves when you
handle Long Life engine
coolant. If contact with the
eyes or skin should occur,
flush eyes and wash
immediately with clean water.
• Failure to comply may result in
minor or moderate injury.
0000005enMarine
CAUTION
• Only use the engine coolant
specified. Other engine
coolants may affect warranty
coverage, cause an internal
buildup of rust and scale
and / or shorten engine life.
• Prevent dirt and debris from
contaminating engine coolant.
Carefully clean the heat
exchanger cap and the
surrounding area before you
remove the cap.
• NEVER mix different types of
engine coolants. This may
adversely affect the properties
of the engine coolant.
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Summary of Contents for 6SY Series
Page 1: ...6SY series OPERATION MANUAL 6SY Operation Manual P N 0A6301 G0000 MARINE ENGINES ...
Page 34: ...PRODUCT OVERVIEW 26 6SY Operation Manual This Page Intentionally Left Blank ...
Page 54: ...BEFORE YOU OPERATE 46 6SY Operation Manual This Page Intentionally Left Blank ...
Page 120: ...LONG TERM STORAGE 114 6SY Operation Manual This Page Intentionally Left Blank ...
Page 126: ...President Yanmar Marine Int l ...
Page 127: ...President Yanmar Marine Int l ...
Page 128: ...EPA WARRANTY USA ONLY 120 6SY Operation Manual This Page Intentionally Left Blank ...