You can log in to the CCB credit card website - home page - high-end products - click "Car Card" (on the far right, with the word AUTO on the card) - click "National Preferential Car Wash Outlets and Point-based Oil Change Methods" - Select your region (Henan) to find

"Longka Auto Card Points Oil Change Outlet Inquiry" - open the form, search for Kaifeng, and there you have it~ There are two in Kaifeng:

Jinming District Henan Sales Kaifeng Branch Kaifeng 32 Station 500 meters north of Tianma Plaza, Jinming Avenue, Kaifeng City East of the Road

Shunhe District Henan Sales Kaifeng Branch Kaifeng Dongsimen Gas Station Kaifeng City Shunhe District Dongsimeng Watchtower Opposite