Longka Car Card has a weekly discount car wash service. When the retail price of car wash service is equal to or lower than 15 yuan, cardholders can enjoy car wash service without paying fees; When the retail price of car wash service exceeds 15 yuan, the excess will be paid by the cardholder with car card points (the conversion ratio is 4‰, that is, every 1000 points will be converted into 4 yuan RMB), and the balance of points will be paid in cash. CCB official website can inquire about specific car washing points, log in to the homepage of CCB Credit Card, select Longka car card from the high-end products at the bottom of the page, and then click "Inquire about national car washing outlets and integral oil changing methods" on the right side of the page, and select Chongqing, the province and city where the car card is located in the map to inquire about all local car washing points.