iFahrer - Führerschein Vorbereitung APP
Interactive preparation for the driving license test
Technical aspects / 2.7.04-206
What are the requirements of lubricating oils for diesel engines?
They have to reduce wear
They have to be heat resistant
They have to be fluid during cold periods
They have to reduce wear
They have to be heat resistant
They have to be fluid during cold periods
Learn more by downloading app
