General Information
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Cummins Inc. recommends the use of fully-formulated antifreeze or coolant containing a precharge of supplemental coolant additive (SCA) for the ISX11.9 CM2250. The antifreeze or coolant must meet the specifications outlined in the Technology and Maintenance Council (TMC) Recommended Practice (RP) 329 (ethylene glycol) or Recommended Practice (RP) 330 (propylene glycol). The use of fully-formulated antifreeze or coolant significantly simplifies cooling system maintenance.
Copies of Technology and Maintenance Council (TMC) specifications can be obtained through Cummins Inc., or by contacting:
- Technology and Maintenance Council
- American Trucking Association
- 2200 Mill Road
- Alexandria, VA 33314-5388
- Phone: (703) 838-1763
- Fax (703) 836-6070
Fully-formulated antifreeze contains balanced amounts of antifreeze, SCA, and buffering compounds, but does not contain 50 percent water. Fully-formulated coolant contains balanced amounts of antifreeze, SCA, and buffering compounds already premixed 50/50 with deionized water.
Alternative maintenance practices for cooling systems can be found in Cummins® Coolant Requirements and Maintenance, Bulletin 3666132.
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Specifications
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Automotive Applications
| Coolant Capacity (engine only) |
25.1 liters [26.5 qt] |
Standard Modulating Thermostat
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| Temperature Range |
82 to 93°C [180 to 200°F] |
| Maximum Allowable Top Tank Temperature |
100°C [212°F] |
| Minimum Recommended Top Tank Temperature |
70°C [160°F] |
| Minimum Allowable Draw Down |
5 percent |
| Minimum Recommended Pressure Cap |
103 kPa [15 psi] |
Minimum Fill Rate
| Maximum Deaeration Time |
25 minutes |
| Fan-on Coolant Temperature |
99°C [210°F] |
Winterfronts
| Full-On Fan Charge-Air Cooler Outlet Temperature |
66°C [151°F] |
Last Modified: 22-Jun-2010
