... cone penetration, 0.1mm220—250Dropping Point,°C ≥290Corrosion(T2 sheet copper,100°C,24h)No green or black changeSteel mesh ... oil filtering (100°C,24h)% ≤0.5Evaporation (99°C,22h)% ≤1.0Extreme-pressure performance: Timken test. ... Good high temperature performance, dropping point no less than 290°C to 330 °C, little change of consistency with long time working under ...