Development of nanolubricant automotive air conditioning (AAC) test rig A.A.M. Redhwan, W.H. Azmi, M.Z. Sharif and Ftwi Y. Hagos MATEC Web Conf., 90 (2017) 01050 Published online: 20 December 2016 DOI: 10.1051/matecconf/20179001050