DEVELOPMENT OF MODERN ENGINE OILS BY THE APPLICATION OF SUCCINIMIDE TYPE ADDITIVES

The presentation is concerned with an overview of the history and deve lopment of the application of Hungarian succinimide type detergent-dis persant additives. The relationship between the formulation of engine oils in the last twenty years and the efficiency of the ashless succin imide type additives is discussed. Results of the laboratory and motor tests of engine oils are compared. Based on the results of the struct ure optimisation of the polyisobutenyl-succinimide type additives sign ificant results have been achieved in the improvements of the effectiv eness of the performance packages (SE, SF, SG, CC, CD, HPDO) of differ ent levels. It has been found that by using various types of succinimi de additives a cost effective production of environmentally sounder an d from the point of view of human biology more advantageous engine oil s of different performance levels with low ash and phosphorus content and only some ppms of halogen can be achieved.