“…1,11,9,25,26,27,9 The aging of lubricants in combustion engines was frequently analyzed and a multitude of publications was released to the public. 28,29,30,31,32,33,34,8,35,36,37,38,39,40,41 The combustion engine oils are additionally burdened with the combustion process, so they cannot be compared with the transmission oils.…”