The Longka Car Card has a weekly discounted car wash service. When the retail price of the car wash service is equal to or lower than 15 yuan, the cardholder can enjoy the car wash service without paying a fee; when the retail price of the car wash service exceeds 15 yuan, the excess amount will be used by the cardholder to use car card points (the exchange ratio is 4 ‰, that is, every 1,000 points is converted into RMB 4) for payment. When the balance of points is insufficient, payment is made in cash. You can check specific car wash locations on the CCB official website, log in to the CCB credit card homepage, select the Longka car card among high-end products at the bottom of the page, then click "National car wash outlets and point-based oil change methods inquiry" on the right side of the page, and select the car card on the map to apply for the card You can check the information of all local car wash points according to the province and city it belongs to.