Hello @ all, I have always been convinced that you don’t have to change the transmission oil in automatic mode, I have already discussed it here in the forum. My colleague from the FOH said no, TIS 2000 – only under difficult conditions (pass roads/trailer operation) you know yourself. Today we talked about it with a master, but not Opel spec, which means yes! As already said, the opinions share, as already so often. My Omi has 175tkm down, if a change has to be, then yesterday, if you want to go on holiday with your car this year, you don’t want that because of 100€. It’s still wonderful. But you know it yourself, you drive for years without any problems, then you want to drive 1800 kilometers at a time and the cart will stop you somewhere where no one can help. Please don’t waste my time on the search function, there are a lot of opinions about it, only shared ones. That doesn’t really help. MfG