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Maintenance—Machine
KR46761,000140A -19-02NOV16-1/1
DX,COOL19 -19-13JAN18-1/1
Diesel Engine Coolant
Ethylene glycol or propylene glycol base coolants should
be used if they meet the following specication:
•
Pre-mix coolant meeting ASTM D6210 requirements
•
Coolant concentrate meeting ASTM D6210
requirements in a 40—60% mixture of concentrate with
quality water
If coolant meeting one of these specications is
unavailable, use a coolant concentrate or pre-mix coolant
that has a minimum of the following chemical and physical
properties:
•
Is formulated with a nitrite-free additive package
•
Protects the cooling system metals (cast iron, aluminum
alloys, and copper alloys such as brass) from corrosion
Water Quality
Water quality is important to the performance of the
cooling system. Distilled, deionized, or demineralized
water is recommended for mixing with ethylene glycol and
propylene glycol base engine coolant concentrate.
Coolant Drain Intervals
Drain and ush the cooling system and rell with fresh
coolant at the indicated interval.
When coolant meeting ASTM D6210 is used, the drain
interval is 2 years or 4000 hours of operation.
IMPORTANT: Do not use cooling system sealing
additives or antifreeze that contains
sealing additives.
Do not mix ethylene glycol and propylene
glycol base coolants.
Do not use coolants that contain nitrites.
Water Quality for Mixing with Coolant Concentrate
Engine coolants are a combination of three chemical
components: ethylene glycol (EG) or propylene glycol
(PG) antifreeze, inhibiting coolant additives, and quality
water.
Water quality is important to the performance of the
cooling system. Deionized or demineralized water
is recommended for mixing with ethylene glycol and
propylene glycol base engine coolant concentrate.
All water used in the cooling system should meet the
following minimum specications for quality:
Chlorides <40 mg/L
Sulfates <100 mg/L
Total solids
<340 mg/L
Total dissolved I hardness
<170 mg/L
pH 5.5—9.0
IMPORTANT: Do not use bottled drinking water
because it often contains higher concentrations
of total dissolved solids.
Freeze Protection
The relative concentrations of glycol and water in the
engine coolant determine its freeze protection limit.
Ethylene Glycol
Freeze Protection Limit
40% -24°C (-12°F)
50% -37°C (-34°F)
60% -52°C (-62°F)
Propylene Glycol
Freeze Protection Limit
40% -21°C (-6°F)
50% -33°C (-27°F)
60% -49°C (-56°F)
DO NOT use a coolant-water mixture greater than 60%
ethylene glycol or 60% propylene glycol.
3-1-12
112321
PN=190
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