A carbon compound with small viscosity difference according to temperature change and fluidity even at low temperature. Mainly used as a raw material (80%~85%) of lubricants and mixed with additives to produce finished lubricant products.

1. ⓐ Viscosity : Viscosity: Measuring resistance to fluid flow
2. ⓑ Viscosity Index : Index of viscosity change according to temperature change. The higher the number, the better.
3. ⓒ Pour point : The minimum temperature at which a fluid state can be maintained. The lower the temperature the higher the quality.
4. ⓓ Color : Judging the state of quality from appearance. White color for high quality, Yellow color for low quality

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