Heavy Duty

Waterless Coolant for:

Commercial engines, Plant, Generators, HGVs, Agricultural vehicles etc...

Boiling Point:

Above 180°C

Antifreeze Properties:

Protects below -40°C


Reduces Downtime, Improves Combustion, Prevents Boil-Over

Corrosive Properties:

Eliminates corrosion and erosion

Life Span:

Protects for life



Evans Heavy Duty is a waterless engine coolants formualted for Commercial Diesel engines with large cast iron blocks and cylinder liners plus aluminium, steel and copper components. Heavy Duty is proven to eliminate downtime associated with overheating, boil-over and after-boil

No Water Means...

No Overheating

Evans Heavy Duty has a boiling point of 180°C and will not boilover.

More BHP

Evans Heavy Duty eliminates premature detonation associated with overheating.

No Corrosion

Water contains oxygen, oxygen allows corrosion. Evans Heavy Duty eliminates corrosion.

No Pressure

Evans Heavy Duty allows your cooling system to run at a lower pressure, reducing the strain on engine components.

No Liner Pitting

Evans Heavy Duty generates significantly less pitting when compared with all water based coolants.


The Science Behind Evans

No Overheating

Traditional water based coolants regularly cross the thermal boundary that separates Efficient Nucleate Boiling (A) from Inefficient Critical Heat Flux. CHF leads to localised film boiling (B) and steam bubbles circulating throughout the cooling system, which often results in overheating and combustion issues. Evans Waterless Coolants boil above 180º C ensuring effective cooling and efficient fuel burn is maintained for all engine loads and ambient air temperatures.

More BHP

When water-based coolants vapourise adjacent to the combustion zone, hot-spots are formed. These hot-spots have been proven to cause pre-ignition in petrol engines and detonation issues in diesel engines. Evans Waterless Coolants eliminates hot-spots and subsequently improve combustion efficiency and increase power delivery.

No Corrosion

Water is the root cause of corrosion in all cooling systems, via oxidation (rusting) and galvanic (electrolytic) action. Evans coolants do not contain dissolved oxygen and have a much lower conductivity (increased resistivity) compared with water-based coolants. Subsequently replacing water with Evans non-aqueous solution eliminates corrosion and the need to periodically refresh or replenish the coolant.

No Pressure

Water requires additional (cap) pressure to prevent it boiling within the engine. This additional pressure can vary between 7psi and 29psi (0.5 Bar to 2 Bar) which places significant stress on cooling system components, including hoses, gaskets and radiators. Evans Waterless Coolants generate much lower pressures, in the region of 4psi, and therefore reduces strain on all components.

No Liner Pitting

Liner pitting is primarily caused by the rapid formation and collapse of small steam bubbles on the metal surface. Over several years this process can lead to severe surface erosion and deep liner pitting. Evans Waterless Coolants are not prone to forming vapour bubbles and proven, by SAE trials, to virtually eliminate surface erosion and pitting.



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