SAE 20 Monograde Oil – Properties in Industrial Use (Elevators) Technical Properties of SAE 20 Monograde Oil Viscosity: Medium viscosity (approx. 8–9 mm²/s at 100 °C) Temperature Range: Suitable for moderate ambient temperatures (approx. -5 °C to +40 °C) Oxidation Stability: Good thermal and oxidative stability under normal operating conditions Lubrication: Solid lubrication performance under low to medium loads Aging Resistance: Less stable than modern multigrade oils but simpler in composition Detergent Effect: Lower than modern oils, but still protective
