ABSTRACT
Lubrication is the sole need of any mechanical system. This makes the mechanical system function as desired with efficiency. A number of lubricants are available to meet these lubrication requirements. As progress is being made, more efficient lubricants are being produced. In this way, nanoparticles in the lubricating oil perform very efficiently and are able to reduce the coefficient of friction (COF) and wear. Several nanoparticles are added to lubricants and evaluated for their performance. There is an improvement in the performance of lubricating oil that has been cited by different researchers. This chapter summarizes the effect of nanoparticles on the performance of lubricating oil. Also provided is a guideline as to what level COF can be reduced, along with the morphological parameters of nanoparticles and base oil.
