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ILast Premium Heavy Duty 50/50 Antifreeze

Available packaging

1 US Gal
55 US Gal

Used as directed, offers superior performance in virtually every light and heavy duty application. The proprietary inhibitor package is low silicate and phosphate and 2-EH free. Can be used as a top-off but to achieve maximum protection a complete flush and fill should be performed. iLast Premium Heavy Duty Antifreeze provides protection against:

  • Freeze-up/Boil Over
  • Scale Build Up 
  • Sludge/Clogging
  • Wet Sleeve Liner Pitting 
  • Rusting 
  • Corrosion


  • Meets Light Duty ASTM D-3306 and Heavy Duty ASTM D-6210
  • One product for Light Duty and Heavy Duty applications.
  • Perfect choice for mixed fleets. No need to add SCA's.
  • Blended with pure De-Ionized water for your quality needs.
  • Safe for use with all engine metals, including aluminum.
  • Phosphate free and low silicate - suitable for European and Asian models.
  • Light Duty - 5 years/150,000 miles • Heavy Duty - 3 years/300,000 miles.
  • Compatible with hybrid and OAT coolants - including Dexcool™
  • For safety purposes all iLAST antifreeze is blended with a bittering agent.


iLast Heavy Duty Concentrate is blended with proprietary additives designed to safely meet the performance specifications of (but not limited to):

  • ASTM D-3306
  • ASTM D-6210
  • Ford WSS-M97B51
  • GM 1825M
  • GM 1899M
  • Chrysler MS 7170
  • Caterpillar EC-1
  • Detroit Diesel
  • Cummins Engine
  • John Deere
  • International
  • Case New Holland
  • Volvo Trucks
  • GE Locomotive
  • Freightliner
  • Ford ESE-M97B44-A
  • Mercedes
  • Komatsu
  • Navistar
  • TMC RP329
Appearance  Visual  Orange/Red
Specific Gravity at 60/60°F 1.053-1.083  D 1122
Freeze Point, at 50% max  -34°F  D-3321
pH at 50% Solution 8.5-10.0 D-1287
Reserve Alaklinity min.  2.5  D-1121
Foam Test  150ml/5 sec  D-1881