Protect Engines In All Temperatures:Comma are multi-viscosity formulations. They provide optimum engine protection in both hot or cold temperature conditions.
全气候条件下保护发动机：科曼多粘度配方，可适合极冷极热苛刻条件下的最佳引擎保护。
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A by product of the alleged collapse of HTA, which is equally surprising, is the existence of intermolecular multi quantum coherences (MQC) in low viscosity liquids such as water.
Therefore they also has the characteristic which many linear polymers do not have: good hydromechanics performance, unique viscosity behavior, multi-purpose and good solubility.