ABSTRACT
The previous chapters focused on Newtonian lubricants such as regular mineral
oils. However, non-Newtonian multigrade lubricants, also referred to as VI
(viscosity index) improved oils are in common use today, particularly in motor
vehicle engines. The multigrade lubricants include additives of long-chain
polymer molecules that modify the flow characteristics of the base oils. In this
chapter, the hydrodynamic analysis is extended for multigrade oils.
