DefendAL® Heavy Duty Pre-Charged Coolant/Antifreeze

AVAILABLE IN: Jugs, Totes, Drums, Cases



Typical Properties ASTM Method Concentrate 50/50
Glycols Content, mass % GC 96.5 49
Bittering Agent (yes/no) -- Yes Yes
Water Content, mass % D1123 2 50
Corrosion Inhibitor System, mass % -- 2 1
Specific Gravity @ ºF D1122 1.125 1.075
Flash Point D97 240ºF (116ºC) N/A
pH D1287 10.8 10.5
RA D92 5.6 2.8
Storage Stability -- 1 year 1 year
Effect on Non-Metals D1882 No Effect No Effect
Cavitation Errosion Rating D2809 8 min 8 min
Foam Test, ml/sec D1881 <50/3 <50/3
Fluid Color Visual Fuchsia Fuchsia
Coolant/Antifreeze %
40/60 Freeze Point
D1177 -24ºF (-12ºC) N/A
Coolant/Antifreeze %
50/50 Freeze Point
D1177 -34ºF (-36ºC) -34ºF (-36ºC)
Coolant/Antifreeze %
60/40 Freeze Point
D1177 -62ºF (-52ºC) N/A
Coolant/Antifreeze %
40/60 Boil Point
D1120 221ºF (105ºC) N/A
Coolant/Antifreeze %
50/50 Boil Point
D1120 226ºF (108ºC) 226ºF (108ºC)
Coolant/Antifreeze %
60/40 Boil Point
D1120 234ºF (112ºC) N/A
Ash Content D1119 <5.0 <2.5
Chloride (mg/L) D3634 <25 <25
Silicon Content (mg/L) D6130 <250 <125
Nitrite Content (mg/L) D5827 2550 1250
Nitrate Content (mg/L) D5827 600 300
Typical test data average values only, minor variations which do not affect product performance are to be expected during normal manufacturing. Always consult owner's manual for proper viscosity and performance recommendations.

DefendAL® Heavy Duty Pre-Charged Coolant/Antifreeze is a premium quality, conventional technology ethylene glycol-based fluid. The product is specially formulated with industry-leading additives to provide optimum performance in heavy duty vehicles requiring supplemental coolant additives (SCAs).


  • * Approved for use in all heavy duty diesel engines requiring SCAs
  • * No initial SCA pre-charge required
  • * Phosphate-free, low silicate formulation

DefendAL® Heavy Duty Pre-Charged Coolant/Antifreeze is your cooling system’s best defense.

  • * Contains nitrites for superior wet sleeve liner cavitation protection.
  • * Provides maximum freeze and boil-over protection.
  • * Designed for heavy duty applications, yet can be used in automotive applications where conventional technology coolants are acceptable.
  • * Phosphate-free with low silicates.
  • * Effective, long-term corrosion protection for steel, solder, copper, iron, brass and aluminum.
  • * High-quality defoamer system, nonarmful to hoses, plastics or gaskets.
  • * Compatible with all major American brands of conventional coolants, with and without the addition of SCAs.*
  • * Appropriate for use in on- and off-road diesel engines, as well as in stationary engine applications where a conventional pre-charged coolant is required.
SCA levels will need maintaining throughout the life of the engine. Consult your owner's manual for recommendations.

This product meets, or exceeds the requirements similar to the following manufacturers and global specifications: **

  • AGCO (Massey Ferguson) M1130A
  • ASTM D3306
  • ASTM D4985
  • ASTM D6210
  • BS 6580:2010
  • Buhler Versatile 860550054
  • CID-A-52624A
  • Chrysler MS-7170
  • CNH MAT 3620 (87692740)
  • Cummins CES 14603
  • Daimler DBL 7700.00
  • Daimler DBL 7700.10
  • Daimler DBL 7700.20
  • DDC 93K217
  • EMD MI 1748F
  • Ford ESE-M97B18-C
  • Ford ESE-M97B44-A
  • GM 1825M
  • GM 6038M
  • GM 1899M
  • GET-2594F (MI-09500)
  • JCB STD00088
  • Jenbacher 1000-201
  • John Deere JDM H24A
  • John Deere JDM H24B, C
  • John Deere JDS-G135
  • Liebherr
  • Mack GS17004 
  • MTU 5048
  • MWM Deutz TR0199-99-1115
  • Navistar CEMS B-1 Type I
  • Navistar CEMS B-1 Type II
  • Perkins (CAT) 
  • SAE J1034
  • SAE J1941
  • TMC RP 302A
  • TMC RP 302B
  • TMC RP 303C
  • TMC RP 329
  • Volvo Coolant VCS
  • Waukesha 4-2429H 
  • Wisconsin Motors (Continental)

All reasonable care has been taken to ensure that the information herein is accurate as of the date of posting. Freedom to use any patent owned by KOST USA, Inc. or others is not to be inferred from any statement contained herein. The test results listed are typical properties only. Formula and blending changes may results in the slight color and appearance changes.

Always consult your vehicle owner's manual for proper fluid removal and flushing procedures.

*Meets performance requirements but may or may not meet certain chemical requirements.
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For specific product risks check the manufacturer’s SDS Section 15: Regulatory information.