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 Viewpoint - The investigation revealed that a car owner was overcharged due to a malfunction in the fuel dispenser, leading to a duplicate billing of 200 yuan for a fuel purchase [2][10]. Group 1: Incident Overview - On August 9, a car owner reported a dispute at the China National Petroleum Corporation (CNPC) gas station, claiming that 67.96 liters of gasoline were dispensed into a 50-liter tank [8]. - The gas station immediately sealed the involved fuel dispenser for investigation, and the company issued an apology [3][5]. Group 2: Investigation Findings - The investigation confirmed the overcharge of 200 yuan, attributing it to a software and hardware malfunction in the fuel dispenser that caused duplicate billing [10][11]. - Key components of the fuel dispenser were found to be intact and compliant with measurement standards, with no evidence of tampering or operational misconduct by staff [10][11]. - The actual fuel dispensed was determined to be 40.78 liters, while the erroneous charge included an additional 27.18 liters from a previous transaction [11]. Group 3: Future Actions - The regulatory authority will ensure that CNPC implements comprehensive corrective measures, publicly apologizes to consumers, and improves service quality [12]. - There will be an emphasis on enhancing supervision and complaint mechanisms to protect consumer rights [12].