What kind of base oils are used for what kind of applications?
Napthenic base oils are used when the final lubricant is expected to work at moderately lower temperatures. Paraffinic base oils are used when the Viscosity Index requirement is high and the temperatures are not that much lower. These are the largest kind of lubricating base stocks used. Aromatic base oils are seldom used – and find their main application as processing oil. Extra Solvent treated paraffinic and naphthenic base oils are used to make turbine oils. XHVI base oils, with very low volatility, are used to make thinner oil s for the extreme cold whether. Synthetic base oils are used in applications where the temperature is either too high or too low.