I want to get a next car, which has two power-off tanks, each with a pump. I want to be able to switch between two fuels back and forth. The car should be best from the 90s or older. Diesel or petrol engine. That’s the reason I want to drive with a better fuel, but the car starts with a very bad start at the cold start. “The AEX engine only runs when it is already warm. It doesn’t run at the cold start. Only after 30 times of starting attempts came there. nn more and more explosions. When it starts then you have to keep it still with gas, because otherwise the speeds will be lubricated and it will go out.” I tried to drive with the fuel. “That’s why I need an additional tank with petrol to warm up the engine. Two problems: An additional tank has to be registered in the TÜV. That’s why I can only use the additional tank to warm up. If I want to drive, I have to remove it again. (The windscreen wiper water tank as a fuel tank to ve So I need something where I can connect the tank to start and then remove it again. Unfortunately, it’s illegal to keep the engine running warm on public floor. I don’t know how to drive the fuel from the additional tank, because you have to connect it somehow with the accelerator and then you need a gasoline pump.” It’s too cumbersome to install that legally. That’s why I need something that already has.