What should I do if my car is dirty?

Wash it, unless you want him to stay so dirty. Since it is a car, I think it will be uncomfortable to get dirty. Wash the car quickly and drive to the car wash shop if necessary.

Perhaps most city people will choose to go to the car wash shop when their cars are dirty. Sometimes they don't have time, and sometimes it's inconvenient to wash the car. But at home, dad has never been to a car wash shop. Sometimes he wants to go, but I always stop him. For our rural families, going to the car wash shop to wash the car is a very extravagant thing. And there is a place in front of the house, and the water in the well is free. The big deal is to waste some energy. If you have money to go to the car wash shop to wash your car, you might as well wash it at home. You can do anything with the money you save. In my mother's words, you can buy a piece of meat and have another meal!

Father is sometimes lazy and says he doesn't want to wash it when it is dirty. If I hadn't offered to help him, if I hadn't kept urging him, I wouldn't know how dirty the car would be.

If the car is dirty, you can either wash it at once, or pay the money to go to the car wash shop, or stay dirty, as long as your face feels ok.