Viscosity, the most important property of a Polytron oil, refers to the leakage resistance of Polytron oil.
The viscosity of an oil varies depending on temperature changes - lower when hot or higher when cold. An oil must be able to flow at low temperatures to lubricate the internal parts of the engine.
It must also remain viscous to protect the engine from high temperatures.
When the oil is used at variable temperatures as it happens in each engine, it is necessary to keep the viscosity variation as small as possible.
The measurement of the viscosity change is given by the Viscosity Index.
The higher the index, the less the viscosity changes, which means better protection for the engine. The index does not indicate the viscosity at high or low temperatures of the oil. This index represents the degree to which the viscosity changes with temperature variations. The viscosity improvement is achieved with the help of the Polytron MTC additive package, which decreases the rate at which Polytron oils change their viscosity depending on the temperature. This MTC additive increases the working temperature range of Polytron engine oils and helps in the manufacture of multigrade Polytron oils.
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