Base oil BS "YANOS" is a petroleum refining product obtained through a special treatment process including selective refining, dewaxing, and hydrofinishing.
Characteristics:
• Kinematic viscosity at 100 °C — min 23.0 mm²/s;
• Viscosity index — min 90;
• Carbon residue — max 0.55%;
• Acid number — max 0.008 mg KOH per 1 g oil;
• Ash content — max 0.03%;
• Sulfur mass fraction — max 0.5%;
• Density at 15 °C — max 908 kg/m³;
• NOACK volatility — max 0.3%;
• Appearance — homogeneous transparent liquid.
Applications: Serves as feedstock for commercial oils of various applications (engine, industrial, and others).
Advantages: Deep refining level, improved thermo-oxidative and environmental characteristics, good compatibility with other base oil groups, and good additive response.

