14 APPENDIX
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
204
Pub. No. 291Y1-40720 Revision: 5
Coolant
When using the LLC other than genuine ones, use
the LLC which meets "
Requirements for LLC" (→
Page 204) and "LLC Quality Standard" (→ Page
204).
Do not mix and use LLC of different types and/or
manufacturers.
• If you use the LLC which does not meet
"
Requirements for LLC" (→ Page 204) and
"
LLC Quality Standard" (→ Page 204), for
failures due to LLC, warranty will become
invalid.
• The quality and performance of
commercially available LLC and their
component variations are the
responsibility of LLC suppliers.
• Before purchasing a commercial LLC, be
sure to discuss the suitability of LLC with
the LLC supplier.
• Be sure to use an all-season (non-amine)
type long life coolant that prevent
freezing of cooling water. Do not use
antifreeze alone instead of LLC.
Requirements for LLC
• LLC must be a homogeneous liquid without
sediment.
• When the LLC is diluted to 30 to 60% density, the
LLC must not cause any problems such as
corrosion and precipitation deposits in the engine
cooling system.
• LLC must be mixed well with other non-amine
type LLC that meets these requirements and
must not separate elements included in each
product, and must not decrease the performance
of both products.
• LLC must not corrode the container and shall not
produce a precipitate when LLC is stored in the
container for 6 months.
• LLC must be free from any abnormalities such as
precipitates when kept in -20 to -25°C [-4 to -
13°F] temperature.
LLC Quality Standard
LLC must be tested in accordance with JIS K 2234,
Section 8 "Test method", and satisfy the following
table. General matters and specimen sampling
method shall comply with JIS K 2234.
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