Hello together, The Opel of my Opas….a Opel Calibra A ~ 115 hp, 85 kW (automatic) had a cooler damage, would replace it now. Therefore my question.. which coolant should I use here? Don’t really know me there, is therefore also the “1. project” in this kind of car. Is also rather an emotional action 🙂 It just hangs on it and with almost 270,000 km the really first major mechanical problem. On the Internet the spirits argue which color and mixture the coolant must have. The current or that what ended was red / rather dark violet. Therefore my question is what makes sense? G12+? G13? Would be great if someone could give me an answer. Greetings!