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7/120 (P425AWIR), 9/110 (XP375AWIR), 10/105 (HP375AWIR), 14/85 (VHP300AWIR),
7/170 (P600WIR), 10/125 (HP450WIR), 14/115 (VHP400WIR)
Diesel Engine Coolant
The engine cooling system is filled to provide
year–round protection against corrosion and
cylinder liner pitting, and winter freeze
protection to –37_C (–34_F).
Low silicate ethylene glycol base coolants for
heavy–duty engines may be used if they meet
one of the following specifications:
• ASTM D5345 (pre–diluted coolant)
• ASTM D4985 (coolant concentrate) in a 40 to
60% mixture of concentrate with quality water.
Coolants meeting these specifications require
use of supplemental coolant additives,
formulated for heavy–duty diesel engines, for
protection against corrosion and cylinder liner
erosion and pitting.
A 50% mixture of ethylene glycol engine coolant
in water provides freeze protection to –37_C
(–34_F). If protection at lower temperatures is
required, consult your dealer for
recommendations.
Water quality is important to the performance of
the cooling system. Distilled, or de–mineralized
water is recommended for mixing with ethylene
glycol base engine coolant concentrate.
Chlorides <40mg/L
Sulfates <100 mg/L
Total Dissolved Solids <340 mg/L
Total Hardness <170 mg/L
pH 5.5 to 9.0
IMPORTANT: Do not use cooling system
sealing additives or antifreeze that contains
sealing additives.
Supplemental Coolant Additives
The concentration of coolant additives is
gradually depleted during engine operation. For
all recommended coolants, replenish additives
between drain intervals by adding a
supplemental coolant additive every 12 months.
IMPORTANT: Only use coolant additive to
replenish the coolant. Do not use additive
when the entire system is drained and
refilled.
Consult the coolant supplier and follow the
manufacturer’s recommendation for use of
supplemental coolant additives.
The use of non–recommended supplemental
coolant additives may result in additive drop–out
and gelation of the coolant.
Add the manufacturer’s recommended
concentration of supplemental coolant additive.
DO NOT add more than the recommended
amount.
Coolant Drain Intervals
Drain the factory fill engine coolant, flush the
cooling system, and refill with new coolant after
the first 3 years or 3000 hours of operation.
Subsequent drain intervals are determined by
the coolant used for service. At each interval,
drain the coolant, flush the cooling system, and
refill with new coolant.
Operating in Warm Temperature Climates
Ingersoll–Rand engines are designed to operate
using glycol base engine coolants.
Always use a recommended glycol base engine
coolant, even when operating in geographical
areas where freeze protection is not required.
IMPORTANT: Water may be used as coolant
in emergency situations only.
Foaming, hot surface aluminum and iron
corrosion, scaling, and cavitation will occur
when water is used as the coolant, even
when coolant conditioners are added.
Drain cooling system and refill with
recommended glycol base engine coolant
as soon as possible.
Engine Break–In Service
The engine is ready for normal operation.
However, extra care during the first 100 hours
of operation will result in more satisfactory
long–term engine performance and life. DO
NOT exceed 100 hours of operation with
break–in oil.