Hello dear ones! In my TSI Direct Injection (Golf 6 1.4l 122PS CAXA) cooked valves are a topic because of the LongLife Plörre. In order to do what is good, I thought about simply changing between the VW alternating intervals (30tKm/2 years) even to make an oil change. Since I have to fill the LL Plörre every 2 years at VW (do not want to recode) that would mean that I would drive 1 year 5W-30 LL and 1 year 5W-40 (addinol) in change… Well my question: Is this possible/unthinkable? Or is it bad for the engine if the viscosity is changed…? I wanted to get there next week… incl. engine flushing (Liqui Moly Pro Line) ahead… Thank you!