Is the car full or not?

The amount of fuel in a car is determined by the solar terms, so to speak! It's cooler in spring, autumn and winter, so it's better to fill it with gasoline. At that time, neither gasoline nor diesel oil would expand in the fuel tank. In terms of percentage, it is best to fill in 90%. In summer, because of the hot weather, any liquid object will expand with heat and contract with cold. So it's best to refuel as much as possible, not too much 70%-80%. Of course, the same is true even when you are away from home. It is ok to add a little more, but it is better to add a proper amount. I am a driver driving a large tractor. Because our car consumes a lot of fuel, we usually refuel at around 90%-95%. In summer, we also control the amount of oil and never fill it up. Friend, is it clear now? Tell me what you don't know about cars and I'll help you. I hope to adopt my answer!