Mobil Heavy Duty Coolant/Antifreeze is a phosphate-free, ethylene glycol based, heavy-duty diesel engine coolant.
Mobil Heavy Duty Coolant/Antifreeze provides optimum protection against cavitation erosion, corrosion, scale, overheating, and freezing for all heavy-duty cooling system applications. Because it is precharged with a high quality Supplemental Coolant Additive (SCA), Mobil Heavy Duty Coolant/Antifreeze requires no SCAs at initial fill and helps ensures proper chemistry is maintained at every top-off.
Mobil Heavy Duty Coolant/Antifreeze is a fully formulated universal formula coolant/antifreeze, having the advantages of low total dissolved solids, low silicate and incorporates nitrite to provide exceptional wet sleeve liner cavitation protection.
Additional advantages of using Mobil Heavy Duty Coolant/Antifreeze include its phosphate-free formula that reduces the risk of scale and state-of-the-art corrosion inhibitors that eliminate the need for expensive deionized water.
Equipment lubricant recommendations
Our Mobil Serv℠ Product Selector tool will help you identify lubricant(s) for your specific equipment.
Mobil Heavy Duty Coolant/Antifreeze is recommended for use in:
On-road and off-road heavy-duty diesel and gasoline engines
Mixed fleets where both light-duty and heavy-duty vehicles are present.
Features and Benefits
No initial SCA precharge required
Effective corrosion protection for aluminum, brass, cast iron, colder, steel and copper
Contains nitrite for excellent pitting protection for wet sleeve cylinder liners
Phosphate-free formula reduces hard water scale deposits
Inhibitor system helps reduce dropout, gel and scale
Compatible with other commercially available fully formulated coolants
Compatible with heavy-duty diesel SCAs and cooling system filters
Universal low silicate formula helps reduce deposits
Specifications and Approvals
Mobil Heavy Duty Coolant/Antifreeze is recommended by ExxonMobil for use in applications requiring the following specifications:
ASTM D 3306
ASTM D 4985
ASTM D 4340
ASTM D 6210
Detroit Fluid Specification 93K217
J.I. Case JIC501
John Deere H24A1 / H24C1
Navistar B1 Type II
TMC RP 329
Meets the performance requirements of:
Paccar (Peterbilt and Kenworth)
And other engines that can benefit from a phosphatefree, low- silicate formula coolant
Freezing Down To
Boiling Up To*
- 24 °C / - 11 °F
127 °C / 261 °F
- 37 °C / - 34°F
129 °C / 265 °F
- 52 °C / - 62 °F
132 °C / 270 °F
*Using a 15 PSI Pressure Cap
ASTM Test Method
Specific Gravity (60/60˚F)
1.120 – 1.130
Freezing Point, 50 Vol. %, ˚F
D3321 or D1177
Boiling Point, 50 Vol. %, ˚F
pH, 50% Volume Solution
10.0 – 11.0
Reserve Alkalinity, mL
6.0 – 7.5
150 ml. / 5sec., Max
Pink / Fuchsia
Health and Safety
Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.
Mobil Heavy Duty SCA Precharged Coolant/Antifreeze SDS Documents
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