This Heavy Duty extended-life antifreeze/coolant premix meets the following industry specifications:

  • ASTM D3306 (automotive/light-duty)
  • ASTM D4985 (heavy-duty diesel/low silicate)
  • ASTM D6210 (fully formulated and precharged)
  • TMC of ATA RP 302A, TMC of ATA RP 329/330

For use with:

  • CAT EC-1
  • Volvo/Mack
  • John Deere
  • PACCAR (Kenworth & Peterbilt)
  • Cummins
  • Freightliner
  • GM
  • Ford
  • International
  • New Holland
  • Detroit Diesel
  • MTU
  • Navistar B1
  • J.I Case
  • Waukesha
  • Komatsu

*The Maintenance Council of the American Trucking Assoc. Antifreeze also meets the non-phosphate requirements of European OEM’s and non-silicate requirements of Japanese OEM’s

Gotham SD OAT Supreme Diesel Extended Life 50/50

Gotham SD OAT Supreme Diesel 50/50 is a heavy-duty extended life antifreeze/coolant and contains a proprietary poly-organic/multi-organic acid technology inhibitor system that does not contain any 2-EH, phosphate, silicate, borate, nitrate or nitrite. SD OAT 50/50 meets the performance requirements of ASTM D6210 without nitrite or nitrite/molybdate combination. It does not require a supplemental coolant additive (SCA) for heavy-duty fleet maintenance programs, but still provides wet sleeve cylinder liner cavitation protection due to its unique formulation.

A major advantage of this type of antifreeze is that it provides total cooling system protection for 1,000,000 on-road Km without the use of additive-containing coolant filters or supplemental coolant additives (SCA’s). The addition of an extender at 500,000 km is the only maintenance required, although, it is recommended that a sample of the coolant be inspected quarterly to detect any problems such as significant color change, pH change, phase separation, precipitation, cloudiness, or obvious contamination. This inspection should be in addition to the parameters that are normally checked in a routine or scheduled maintenance program.

Gotham SD OAT 50/50 all-organic/poly-organic acid formulation has several other advantages. It is compatible with all types of coolant technologies including conventional inorganic acid salt formulations, straight organic acid (OAT) formulations, hybrid organic acid formulations (HOAT), nitrited HOAT formulations (NOAT) and other poly-organic acid formulations. Additionally, SD OAT 50/50 has a low reactivity which makes it less sensitive to contaminants such as motor oil, hard water compounds and other coolants. In fact, it can be mixed with other coolants in any proportion without adverse effects on corrosion protection

Gotham SD OAT 50/50 is suitable for passenger cars, vans, SUVs, light trucks, heavy-duty fleet vehicles and many off-road applications such as stationary engine cooling systems. It will provide superior corrosion protection for all cooling system metals, including aluminum, steel, cast iron, copper, brass and solder.

These data are based on our current knowledge, experience and technical equipment. They do not relieve customers of carrying out their own tests and experiments, due to the great diversity of possible effects in processing and application of our products. They do not imply any legally binding assurances of certain properties and applications. The recipients of our products ought to abide by the existing legislation and regulations as well as possible reserved rights.

  • Available Sizes:
  • 3.78L
  • 205L
  • 1025L
  • Part No.
  • 950-4
  • 950-205
  • 950-1025