Abstract---Heat dissipation is one of the paramount considerations in IC engine design. Loss of heat is encouraged only in an automobile to keep the engine safe. In this paper, a review of the current status of the research and technological development in the field of thermal spray coating process by utilization of Nanomaterials. Generally, the thermal spray concept is used for improving wear resistance, corrosion resistance, and thermal barrier properties of metals. However, no significant attempts have been made to improve thermal conductivity by thermal spray technology. This paper is focused on the limitation of existing heat transfer in Automobile radiator and how the thermal spray Nano coating will improve the heat transfer in an Automobile radiator.