Hello everyone, I have the following question: Is “premium diesel” longer in the tank than “normal” diesel with biodiesel content? The background is that I had diesel fuel in the boat tank. It was a miserable job to clean everything and I would like to save my work in the coming season. Should you fill the tank completely in the winter storage or empty it better? Is the addition of additives such as Grotamar or similar useful, possibly also with VPower Diesel or Ultimate Diesel? I hope I landed in the right forum. I didn’t really find anything about the Sufu. Thanks for your helpful tips Greetings appelgreen Edit: Typo, I didn’t have diesel fuel but diesel fuel, car correction makes it possible