Lubricant Specialists since1985
  • Castrol-Logo

    Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/Antifreeze is a 50/50 mix of Castrol Heavy Duty Extended Life Coolant/Antifreeze and deionized water. Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/Antifreeze should be used when topping-off cooling systems filled with Castrol Heavy Duty Extended Life Coolant/Antifreeze coolant to ensure proper inhibitor levels are maintained.

    Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/Antifreeze features a patented Organic Acid Technology (OAT) formula that delivers total cooling system protection for 600000 miles of on-road use (6 years or 12000 hours of off- highway use) without the use of Supplemental Coolant Additives (SCAs). The only maintenance required is the addition of a single extender after 300,000 to 400,000 miles of on-road use (3 years or 6000 hours of off-highway use). When required, top-off the cooling system with Castrol Heavy Duty Extended Life Coolant/Antifreeze or Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/Antifreeze only.

    Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/ Antifreeze is a phosphate-free, silicate-free, nitrite-free and borate-free, globally formulated coolant which uses patented organic acid inhibitors to provide superior wet sleeve liner cavitation and corrosion protection of all cooling system metals. Additional advantages of using Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/Antifreeze include:

    • Pre-diluted with deionized water. No need to add water at initial fill or when topping-off.
    • Patented formula, with Contamination Tolerant Additives, which can be mixed in any proportion with other coolants with no detrimental effect to corrosion protection, To realize Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/Antifreeze's maximum protection, contamination levels should be kept below 25%.
    • Eliminates the need for SCAs and coolant filters, saving time and money.
    • Provides superior long-term elastomer compatibility.
    • Phosphate free formula inhibits the formation of hard water scale.
    Castrol Heavy Duty 50/50 Pre-Diluted Extended Life Coolant/Antifreeze is recommended for use in the cooling systems of all types of heavy-duty diesel, gasoline and natural gas engines.

  • Castrol-Logo

    Castrol Heavy Duty Antifreeze with SCA is designed to provide superior engine protection for heavy-duty cooling systems. For years, heavy-duty operators were limited to using low silicate automotive/heavy duty antifreezes that required the addition of a separate supplemental coolant additive (SCA) at initial fill and top off. While this was effective, it resulted in mixing errors when the SCA was added. To prevent SCA variability caused by mixing errors, and improve convenience, Castrol Heavy Duty Antifreeze with SCA was developed. Castrol Heavy Duty Antifreeze is a fully-formulated universal formula antifreeze, having the advantages of low total dissolved solids, low silicate, and incorporates nitrite to provide superior wet sleeve liner cavitation protection.

    Since Castrol Heavy Duty Antifreeze with SCA is pre-charged with SCA, there is no need to add additional SCA's at initial fill or when topping off to compensate for SCA dilution. Additional advantages of Castrol Heavy Duty Antifreeze with SCA include its phosphate-free formula that reduces the risk of scale and state of the art corrosion inhibitors, which eliminates the need for expensive deionized water. As an added benefit, Castrol Heavy Duty Antifreeze with SCA meets the performance requirements of most major automotive specifications for conventional antifreeze, allowing operators of mixed fleets to stock one antifreeze for all their vehicles, simplifying fleet maintenance procedures.

  • Castrol-Logo

    Castrol Premix Antifreeze with SCA (Supplemental Coolant Additive) is a premix (50/50 pre-diluted with deionized water) version of Castrol Heavy Duty Antifreeze with SCA. Castrol Premix Antifreeze with SCA is a diesel specific coolant, formulated to provide superior engine protection for heavy-duty cooling systems. Since the Castrol Premix Antifreeze with SCA is pre-charged with SCA and premixed with deionized water, the addition of SCA's and water when topping off is not necessary, Castrol Premix Antifreeze with SCA is a low total dissolved solids, low silicate coolant that incorporates nitrite to provide superior wet sleeve liner cavitation corrosion protection. Additional advantages include its phosphate free formula and state of the art inhibitor package that reduces the risk of scale and inhibitor drop-out.