Thermal stability study of commercial lube oil at moderate temperature and long working period

Lube oil is used widely in industry to reduce friction or wear of industrial engine components. Thermal stability is one of the crucial properties of lube oil that affect their application. Generally, study about thermal stability perform on a short period and mainly focus on highest temperature limit that can be accepted before their degradation. However, lube oil frequently used for long service period at lower of their temperature limit....