What Octane Gasoline Should the Golf 8 Use?
2 Answers
The Golf 8 equipped with a naturally aspirated engine can use 92-octane gasoline, while the Golf 8 with a turbocharged engine must use 95-octane gasoline. Precautions for refueling: Avoid overfilling the tank: If the tank is filled too full, the high temperatures in summer combined with the heat generated by the car itself can cause the gasoline to expand. To prevent the fuel tank from being damaged by the expanding gasoline, there is a vent hole. If the tank is overfilled, gasoline may overflow through the vent hole, which can lead to spontaneous combustion if exposed to an open flame, with potentially disastrous consequences. Additionally, gasoline overflowing through the vent hole can drip onto the car body, causing corrosion. Fuel additives: Gas station attendants often recommend adding fuel additives when refueling. However, fuel additives cannot fundamentally solve the problem of engine carbon buildup, so it is best to avoid using them. Beware of static electricity: During winter, the dry climate can easily generate static electricity. Therefore, it is essential to guard against static electricity when refueling in winter to prevent serious consequences.
I've been repairing cars for over a decade, and the Golf 8 absolutely requires 95 octane fuel. Volkswagen's 1.4T engine has a high compression ratio, and the manual clearly states 95 octane as the minimum. Last time, an owner tried to save money by using 92 octane, and the engine knocking sounded like banging on a metal pot, with the computer throwing fault codes. 95 octane fuel has higher octane rating and better anti-knock properties, which protects the direct injection system. Don't fall for gas station fuel additive promotions - regular highway driving works better than anything. The fuel filler cap clearly says 95 octane - follow the manufacturer's recommendation. Repairing an engine damaged by wrong fuel costs more than a decade's worth of fuel price difference.
