Can the 2021 Tharu always use 92 octane gasoline?
2 Answers
The 2021 Tharu cannot use 92 octane gasoline. According to official recommendations, the Tharu should use 95 octane gasoline. You can check the vehicle's user manual for clear instructions or look for the fuel standard label inside the fuel tank cap. Using 92 octane gasoline in the Tharu may cause severe engine carbon deposits, reduced power, shortened engine lifespan, and other issues that affect driving safety. The main differences between 92 and 95 octane gasoline lie in their octane ratings, anti-knock properties, and prices. 92 octane gasoline consists of 92% isooctane and 8% n-heptane, while 95 octane gasoline consists of 95% isooctane and 5% n-heptane. Gasolines with different octane ratings have varying octane values. The higher the octane rating, the higher the octane value, and the better the anti-knock performance. 95 octane gasoline is more expensive than 92 octane gasoline, primarily due to its higher proportion of isooctane. Fuel usage precautions: Maintain consistent use of one type of fuel. Mixing different fuels can be harmful to the engine and fuel system. Each engine undergoes comprehensive evaluation before leaving the factory, and based on its performance characteristics, the required anti-knock properties are determined, specifying which octane rating should be used.
From a technical perspective, having driven many Volkswagen models, I can say the 2021 Tharu's engine design has high fuel octane requirements, with the manual recommending 95-octane gasoline as the primary choice. Using 92-octane fuel with lower octane ratings can easily cause engine knocking issues—where premature piston ignition leads to abnormal vibrations. Over time, this increases carbon deposits and spark plug erosion, affecting power output. Occasionally using 92-octane might suffice for city commuting, but long-term use will definitely harm engine longevity and lead to costlier repairs. It's advisable to regularly inspect the fuel system and use specialized cleaners to protect fuel injectors, ensuring your car remains in stable condition.
