Hello together, my car has always been driven in relatively warm areas of Germany (area Stuttgart) and my car dealer has taken care of oil and frost protection, but now I have the fear that my settings here in Bavaria are no longer optimal. If I fill in new antifreeze, I have to replace the old solution. Should I just run the pump in the garage for a while and wait until the new mixture comes out? And how about the Oil out? I mainly travel longer distances (100km and more), can I just leave the oil alone or can the modern Motren oils be used at outside temperatures from -10 to -20 °C? Thanks for the information