50升油箱加67.96升汽油，中石油四川成都销售分公司致歉

Core Points - The investigation revealed that a car owner was overcharged by 200 yuan due to a malfunction in the fuel dispenser, which resulted in duplicate billing [1][3][9] - The incident involved a fuel dispenser at the China National Petroleum Corporation (CNPC) gas station in Chengdu, where a 50-liter fuel tank was reported to have been filled with 67.96 liters of gasoline [1][5] Investigation Findings - The CNPC gas station immediately sealed the involved fuel dispenser for further investigation and conducted a comprehensive check on other dispensers [3][9] - The market supervision authority confirmed that the overcharging was due to a software and hardware malfunction in the fuel dispenser, with no evidence of operator misconduct [3][10] - The investigation included multiple checks on the fuel dispenser's key components, confirming that they were intact and within the required calibration period [10] - Tests conducted on the vehicle confirmed that its fuel tank capacity was consistent with the manufacturer's specifications, ruling out the possibility of an oversized tank [10] Next Steps - The market supervision authority will oversee CNPC's comprehensive rectification efforts, including public apologies to consumers and improvements in service quality [11] - The authority aims to enhance supervision and management, improve complaint mechanisms, and ensure consumer rights are protected [11]