“50升油箱被加了67.96升油”，调查结果公布；中石油四川成都销售分公司致歉

Group 1 - The incident involved a car owner who reported that a 50-liter fuel tank was filled with 67.96 liters of gasoline, leading to a consumer dispute and subsequent investigation [2][3] - The investigation confirmed that the car owner was overcharged by 200 yuan due to a malfunction in the fuel dispenser's software and hardware, resulting in duplicate billing [4][8] - The fuel dispenser was sealed for inspection, and no evidence of tampering or improper operation by staff was found during the investigation [5][6] Group 2 - The investigation included multiple checks of the fuel dispenser's components, confirming that they were intact and within the required calibration period [5] - 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 [6] - The company has committed to rectifying the issues identified, improving service quality, and enhancing consumer protection measures in response to the incident [9][10]