Core Viewpoint - The investigation into the incident where a vehicle with a 50-liter fuel tank was reported to have been filled with 67.96 liters of gasoline confirmed that the vehicle owner was overcharged due to a malfunction in the fuel dispenser's software and hardware, leading to duplicate billing [3][12]. Group 1: Incident Overview - On August 9, a vehicle owner reported a dispute at the China Petroleum Gao Xin Tianshan gas station, leading to police involvement and the sealing of the involved fuel dispenser [4]. - The gas station provided initial compensation on August 12, and the issue was reported to the market regulatory authority, which conducted further investigations [4][5]. - The vehicle owner confirmed the resolution of the dispute during a follow-up by the city administration on August 17 [4]. Group 2: Investigation Findings - The investigation confirmed that the vehicle owner was overcharged by 200 yuan, attributed to a malfunction in the fuel dispenser's software and hardware [5]. - Key components of the fuel dispenser were found to be intact and compliant with measurement standards, with no evidence of tampering or intentional inaccuracies [6]. - No abnormal operational behavior was detected from the gas station staff during the investigation [7]. - 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 [8]. - Data analysis revealed that the fuel dispenser erroneously added the previous transaction's volume to the current transaction, resulting in the overcharge [9]. Group 3: Future Measures - The market regulatory authority will oversee the China Petroleum Sichuan Chengdu Sales Company to ensure comprehensive rectification and public apology to consumers [10]. - The company is required to enhance its service quality, improve complaint mechanisms, and strengthen supervision to protect consumer rights [10][13]. - The company expressed gratitude for public oversight and committed to addressing management and service issues [11][14].