Where is the cost-effective car washing point in Putuo District?

I found it a few days ago in more than 600 lanes of Zhennan Road (next to MG 4S shop). There is a car wash stall. Its main business is cleaning new cars in 4S shops, and by the way, it also receives some individual businesses. It was carefully washed and the price was good. Once 10 yuan (including in and out of the car), once every three times, that is, 30 yuan /4 times. Good cost performance hahahaha ~ ~ ~