In recent years, Heat Transfer Enhancement becomes revolutionized with the discovery of Nanofluids. Heat transfer Characteristics enhances Thermal Efficiency up to higher extent. This research Investigates how Alumina (ALPHA) Nanoparticles enhances Thermal Efficiency with the increasing size in their volume concentration, stability and phase verification. This research study explores that with the increasing size of Volume concentration usually ranges from (0.1% to 5%) Alumina (ALPHA) Nanofluid  20nm size with base fluid Lubricating oil (320-SZ) & (160-MPZ) shows better Thermal Conductivity results as compared to the Thermal conductivity of base fluid i.e Lubricating oil (320-SZ) & (160-MPZ). This research methodology depicts various techniques to enhance Thermal conductivity; Stability and Heat transfer Property of Nanofluids. This Experiment Research works  shows following results that with the Increasing size of  volume concentration usually ranges from 0.1% to 5% Alumina (ALPHA) Nanofluid  with base fluid i.e lubricating oil (160-MPZ) & (320-SZ) enhances better Thermal Conductivity as compared to Thermal Conductivity of Lubricating oil (160-MPZ) &  (320-SZ). In addition to this research Effect on Absorption ratio & Viscosity of Alumina (Gamma) Nanofluids with base fluid lubricating oil (320-SZ) & (160-MPZ) have been also studied. This research also concludes different Surfactants and their effect on Alumina (ALPHA) Nanofluids with base fluid (160-MPZ) & (320-SZ).