This article summarizes research involving the evaluation of thermo-physical properties ethylene- glycol-based solar thermic fluids oxidized multi-walled carbon nanotubes. Nanofluids were prepared with Ethylene glycol and water as base in 100:0, 90:10 80:20 ratios. Base three categories dispersed surfactant-assisted nanotubes (MWCNTs) MWCNTs weight fractions 0.125, 0.25, 0.5 percentages to chec...