BEFORE YOU OPERATE
JH Series Operation Manual 43
12/05
ENGINE COOLANT
Engine Coolant Specifications
Note: In the U.S., LLC is required for
the warranty to be valid.
• Texaco Long Life Coolant (LLC), both
standard and premixed, product code
7997 and 7998
• Havoline Extended Life
Antifreeze / Coolant, product code 7994
Following the manufacturer’s
recommendations, use a proper LLC
which will not have any adverse effects on
the materials (cast iron, aluminum, copper,
etc.) of the engine’s cooling system.
Always use the mixing ratios specified by
the antifreeze manufacturer for the
temperature range.
Coolant (Closed Cooling System)
Always add LLC to soft water especially
when operating in cold weather. Never use
hard water. Water should be clean and free
from sludge or particles. Without LLC,
cooling performance will decrease due to
scale and rust in the coolant 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. Excessive
use of antifreeze also lowers the cooling
efficiency of the engine. Never mix
different types or brands of LLC, as a
harmful sludge may form. Mixing different
brands of antifreeze may cause chemical
reactions, and may make the antifreeze
useless or cause engine problems.
JH5_EN_OPM.book 43 ページ ２０１３年８月８日 木曜日 午前９時２３分
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