There are discounts and discounts on the amount of money charged in the CNPC gas station recharge card. If you charge 1000 yuan to the gas station, the oil will be 20 cents cheaper per liter when you swipe the card after refueling, and if you charge 2000 yuan, the oil will be 30 cents cheaper per liter. In addition, there will be discount coupons for gas station convenience stores. It is appropriate to apply for a gas card.