PROFI-CAR Dictionary
Additives 3 - Oil Additives
With increasing age, the interior of the engine and thus also its performance is impaired by friction and/or wear. In addition to the development of mechanical alterations, seals also get porous. Typical consequences are a loud engine noise and/or a slight loss of oil.
For the users, the advantage may be a better running behaviour of the engine and/or a sealing of minor leakages without expensive shop works.