Gokhan's viscosity-mixing calculator based on the Lederer - Roegiers equation

Calculates dynamic and kinematic viscosities for oil mixtures using the Lederer - Roegiers equation. Users can input fractions of two oils, their dynamic viscosities, and an alpha value to determine the viscosity of the mixture. The sheet includes examples with specific values for oil types, such as light HC and heavy paraffinic oils. Additional calculations for kinematic viscosities are also provided, with guidance on using density values at 15.6 °C for more accurate results.