All types of internal combustion engines requires the use of coolant/antifreeze to remove heat from the combustion area. The coolant/antifreeze’s function is to lower the freezing point for winter operation or raise the boiling point in warm climate.
The most popular choice of coolant/antifreeze worldwide has always been a mixture of ethylene glycol and water, with the ethylene glycol containing selected and specific inhibitors. While coolant/antifreeze is needed to remove
heat in all internal combustion engines regardless of the type of fuel used, a regular control of the coolant/antifreeze solution is required to prevent the engine from severe damage.
Frequent engine repair and failure can be traced to improper or non existent engine cooling water treatment. Rust, scale, mineral deposit and deterioration of seals are the result of improper or no treatment in the cooling system.
From the time the coolant/antifreeze is introduced into any type of engine it starts a gradual degradation process into corrosive acids. This degradation is a function of time, temperature and the types of metals used in
the engine and components construction. Once the coolant/antifreeze turns acidic all engine metals start to dissolve. The results are leaking water pumps, heater cores and radiators.
With the increasing number of aluminum engines and components the corrosive process is accelerated since the coolant/antifreeze degrades much faster in contact with aluminum than in typical cast iron engines. During the preventive maintenance of any engine, in addition to the freezing point, the pH value of the cooling system should be checked.
Most automotive manufacturers provide in the vehicle manual information about the suggested mileage or time to change the coolant/antifreeze. However it is important to measure the pH of the coolant/antifreeze every time the vehicle is at a scheduled service, because of the different climate and operative conditions.
The correct pH value should be maintained between 9.0 – 10.5 pH.
Extensive testing has shown that a coolant/antifreeze pH below 6.9 pH is not acceptable for use in engines due to its corrosive nature and it is advisable to flush the cooling system and refill with a new coolant/antifreeze solution.
Coolant/antifreeze with pH values between 7 and 8 is perfect to re-energize with VR-12 to extend its useful life and spend more time in the cooling system.
VR-12 compensates and revitalizes the natural degradation of coolant/antifreeze, restores the optimum ph levels for the good functioning and keeps the cooling system working at its higher point of performance, which allows the vehicle’s engine to work as it was designed.