1. 1 Bowman, W.F. and Stachowiak, G.W. (1996), “New criteria to asses the remaining useful life of industrial turbine oils”, Lub. Engg, Vol. 52, p. 745.
2. 2 Bowman, W.F. and Stachowiak, G.W. (1996), “Determination of oxidation stability of lubricating oils using sealed capsule differential scanning calorimetry”, Tribo‐Intl., Vol. 29, p. 27.
3. 3 Coates, J.P. and Setti, L.C. (1985), “Infrared spectroscopic methods for study of lubricant oxidation products”, Trans. ASLE, Vol. 29, p. 394.
4. 4 Jefferies, A. (1998), “RULER and engine oil analysis program”, Lub. Engg, Vol. 54, p. 29
5. 5 Jain, S.K. and Singhal, S. (1981), “A study of lubricant degradation in automotive diesel engines”, Proc. National Conference on Industrial Tribology, Calcutta, September, p. II‐2.1.