Modern engine coolants are more than just antifreeze. As well as providing protection against frost in winter months, our antifreeze & coolants offer efficient corrosion protection for the range of metals found in modern passenger cars, light commercial and heavy-duty vehicle cooling systems, meaning better performance and a longer life for your engine.

There are many different types of antifreeze & coolant in the marketplace, the main differentiators being they have different chemical compositions to provide key characteristics.

Quite simply colour is irrelevant, and the correct type of product is driven by the Original Equipment Manufacturer’s (OEM) specification.

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What does Antifreeze & Coolant do?

  • Provides heat transfer properties for engine cooling and component longevity.
  • Lowers the freezing point of water to allow the engine to operate, and protects against frost formation in cold conditions/climates.

What is the chemical makeup?

  • Monoethylene Glycol
  • Additives – mainly corrosion inhibitors

At Millers Oils we offer a wide range of Antifreeze & Coolants covering;

Silicate Organic Acid Technology (Si-OAT)

Monoethylene Glycol based antifreeze & coolant that uses the latest Organic Acid Technology (OAT) together with silicate technology to provide optimum corrosion protection for the latest high-performance lightweight alloy engines. Cars made after 1998 normally need antifreeze & coolant that use silicate technology & Organic Acid Technology (Si-OAT). Provides up to 5 Year Protection.

Available in Concentrate and Ready Mixed.

Colour: Lilac

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NAP Free Hybrid Organic Acid Technology (HOAT)

Monoethylene Glycol (MEG) antifreeze and coolant with Hybrid Organic Acid Technology (HOAT), which does not contain nitrates, amines, phosphates (NAP free). Exceeds most European and International quality standards. Provides up to 3 Year Protection.

Available in Concentrate.

Colour: Green

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Organic Acid Technology (OAT)

Monoethylene Glycol (MEG) with Organic Acid Technology (OAT) suitable for vehicles post 2000. OAT antifreeze & coolants are high performing and provide long lasting corrosion protection. Provides up to 5 Year Protection.

Available in Concentrate and Ready Mixed.

Colour: Red / Yellow

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Inorganic Acid Technology (IAT)

Monoethylene Glycol (MEG) technology suited to legacy vehicles that include classics and more modern vehicles pre 2000. Contains corrosion inhibitors for engine and component protection. Provides up to 2 Year Protection.

Available in Concentrate and Ready Mixed.

Colour: Blue

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Features and benefits

  • Suitable for a range of applications including passenger car, light commercial vehicle (LCV),
    heavy goods vehicle (HGV), marine and plant hire.
  • Meets the performance requirements of a wide range of Original Equipment Manufacturer Standards.
  • Meets most European and International standards.
  • Available in concentrate or ready to use.

For more information please contact us

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