Should the Golf use 92 or 95 octane gasoline?

[MollyLynn]

For Golf models with naturally aspirated engines, 92 octane gasoline is recommended, while turbocharged engine models require 95 octane. Using the wrong gasoline can cause harm in the following three aspects: 1. Incorrect gasoline octane rating: (1) Using a lower octane rating than required: The car may experience insufficient power and higher fuel consumption; (2) Using a higher octane rating than required: This can lead to "delayed ignition," where the fuel does not reach its auto-ignition point even at maximum compression, resulting in incomplete combustion and increased carbon deposits. 2. Mixing gasoline and diesel: (1) Adding gasoline to a diesel engine: This can cause severe engine knocking, damaging the engine; (2) Adding diesel to a gasoline engine: This can also cause knocking and damage the engine. External symptoms include vehicle shaking and black smoke from the exhaust pipe. 3. Using low-quality fuel: This can reduce engine performance and damage components such as pistons and fuel pumps.