5Ltr Cooltech Concentrate
5Ltr Cooltech Concentrate
5Ltr Cooltech Concentrate
5Ltr Cooltech Concentrate

Cooltech Long Life OAT Coolant – Concentrate

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From $69.00 incl. GST

Cooltech OAT Long Life Coolant Concentrate is a premium heavy-duty anti-freeze and anti-boil solution designed for automotive, transport, mining and diesel engines.

  • Long Life Organic Additive Technology (OAT)
  • Maximum anti-freeze & anti-boil protection
  • Silicate, nitrite, phosphate & amine free
  • Suitable for aluminium & mixed metal systems
  • Available in 5L & 20L
  • Concentrate ready for dilution 

Description

Heavy Duty OAT Long Life Coolant Concentrate

Cooltech OAT Long Life Coolant Concentrate is engineered to provide superior cooling system protection across a wide range of automotive and heavy-duty diesel engines. Designed to meet major OEM and industry standards, it delivers reliable anti-freeze and anti-boil performance.

Key Benefits

  • Long service life up to 5 years / 1,000,000 km (at 50% dilution)
  • Protects against corrosion, cavitation and liner pitting
  • Silicate free formulation for improved water pump life
  • Compatible with aluminium, copper/brass and mixed metal systems
  • Helps prevent scale and sludge build-up

Protection Performance

  • Freeze Protection (50% mix): -34°C
  • Boiling Point (neat): 176°C
  • pH (50% solution): 7.5 – 9

Mixing Instructions

Dilute with good quality water to 50% v/v concentration for maximum protection. Do not mix with other coolant formulations.

Applications

Suitable for passenger vehicles, light commercial vehicles, heavy-duty trucks, mining equipment and industrial diesel engines.

Available Sizes

  • 5 Litre
  • 20 Litre

How To Use – Cooltech Concentrate

Cooltech Concentrate must be diluted before use.

Step 1 – Drain Cooling System

  • Ensure engine is completely cool before opening the radiator.
  • Drain radiator and engine block fully.
  • If contaminated, flush system with clean water.

Step 2 – Dilution

  • Mix Cooltech Concentrate with clean, good quality water.
  • Recommended mix: 50% Cooltech / 50% water.
  • This provides freeze protection to approximately -34°C and optimal anti-boil performance.

Important: Do not mix with other coolant formulations.

Step 3 – Refill System

  • Slowly refill radiator and overflow reservoir.
  • Start engine and allow it to reach operating temperature.
  • Check for air pockets and top up if required.

Maintenance

  • Check coolant level regularly.
  • Replace as per manufacturer service intervals (up to 5 years depending on conditions).

Safety Information

  • Contains ethylene glycol.
  • Harmful if swallowed.
  • Avoid contact with skin and eyes.
  • Keep out of reach of children.

Product Compatibility – Cooltech OAT Long Life Coolant Concentrate

Engine Compatibility

  • Petrol (Gasoline) engines
  • Diesel engines
  • Light commercial vehicles
  • Heavy-duty trucks & transport fleets
  • Mining & industrial equipment
  • Stationary diesel engines

Material Compatibility

  • Aluminium engines and cylinder heads
  • Cast iron engine blocks
  • Mixed metal cooling systems
  • Aluminium radiators
  • Copper / Brass radiators
  • Steel and solder components

Cooling System Compatibility

  • Modern OAT coolant systems
  • Heavy-duty diesel cooling systems
  • High temperature operating environments
  • Extended service interval applications

Standards & OEM Compatibility

Meets or exceeds major coolant specifications including:

  • ASTM D3306
  • ASTM D4985
  • ASTM D6210
  • AS/NZS 2108 Type A
  • Caterpillar EC-1
  • Cummins CES 14603
  • GM 6277M
  • Mercedes-Benz DBL 325

Important Compatibility Notes

  • Do not mix with conventional, IAT or hybrid coolant types.
  • Always flush system when changing coolant types.
  • Follow vehicle manufacturer specifications.

Cooltech Concentrate GHS SDS

ASTM Testing & Compliance – Cooltech OAT Long Life Coolant Concentrate

Cooltech OAT Long Life Coolant Concentrate has been tested and assessed under recognised ASTM corrosion, cavitation and performance standards. Testing confirms strong corrosion protection, aluminium heat transfer stability, and cavitation resistance under specified conditions.

ASTM Testing Completed

Cooltech has been tested under the following ASTM methods:

  • ASTM D1384 – Corrosion Test for Engine Coolants in Glassware
  • ASTM D4340 – Corrosion of Cast Aluminium Alloys Under Heat Rejecting Conditions
  • ASTM D2570 – Simulated Service Corrosion Test for Engine Coolants
  • ASTM D2809 – Cavitation Corrosion & Erosion Characteristics of Aluminium Pumps
  • ASTM D3306 – Automotive Engine Coolant Specification (Light Duty)
  • ASTM D4985 – Heavy Duty Engine Coolant Specification
  • ASTM D6210 – Fully Formulated Heavy-Duty Coolant Specification

Corrosion & Performance Test Results

Testing performed at 50% (v/v) concentration in hard water.

ASTM D1384 – Glassware Corrosion

  • Copper: 1 mg (Max allowable 10 mg)
  • Solder: 2 mg (Within allowable limits)
  • Brass: 1 mg
  • Mild Steel: 1 mg
  • Cast Iron: 1 mg
  • Cast Aluminium: 2 mg
  • No evidence of pitting observed

ASTM D4340 – Heat Transfer Aluminium Corrosion

  • Heat Transfer Corrosion Rate: 0.3 mg/cm²/week (Max 1.0 allowable)
  • No crevice or pitting attack observed

ASTM D2570 – Simulated Service Corrosion

  • Copper: -0.3 mg
  • Solder: -1.5 mg
  • Brass: -0.4 mg
  • Steel: 1.8 mg
  • Cast Iron: -2.8 mg
  • Cast Aluminium: -2.5 mg

ASTM D2809 – Cavitation Test

  • Corrosion Rating: 9
  • No cavitation damage evident

Compliance Summary

Cooltech meets or exceeds ASTM D3306, D4985 and D6210 performance specifications for automotive and heavy-duty engine coolant applications.