Can the 2021 Tharu always use 92 gasoline?
3 Answers
The 2021 Tharu cannot use 92 gasoline. According to official recommendations, the Tharu should use 95 gasoline. You can check the vehicle's user manual for clear instructions or look for the fuel standard reminder inside the fuel tank cap. Using 92 gasoline in the Tharu can lead to severe engine carbon buildup, reduced power, shortened lifespan, and compromised driving safety. The differences between 92 and 95 gasoline mainly lie in octane rating, anti-knock properties, and price. 92 gasoline consists of 92% isooctane and 8% n-heptane, while 95 gasoline is composed of 95% isooctane and 5% n-heptane. Gasoline with higher octane ratings has better anti-knock properties. 95 gasoline is more expensive than 92 gasoline due to its higher proportion of isooctane. Fuel usage precautions: Consistently use one type of fuel; mixing fuels can harm the engine and fuel system. Each engine undergoes comprehensive evaluation before leaving the factory, with recommended octane requirements based on performance characteristics.
Having driven for over a decade and studied various engines, I can share that most configurations of the 2021 Tharu are equipped with TSI turbocharged engines. These engines feature high compression ratios and require gasoline with strong anti-knock properties, meaning fuel with a high octane rating. 92-octane gasoline has a low octane value. While it's not a big deal to use it occasionally in emergencies, continuous use may lead to knocking—that characteristic rattling sound—and over time, severe carbon buildup, directly affecting power and fuel consumption. Turbocharged engines operate under high temperatures, and low-octane fuel is more prone to prematurely igniting the air-fuel mixture, causing uneven cylinder pressure and component wear. Manufacturer manuals typically recommend gasoline with an octane rating of 95 or higher. I advise owners to carefully check their manuals to confirm the specific requirements for their model, as saving a little now might lead to costly repairs later. Regular maintenance should also include checking the condition of spark plugs and ensuring the fuel system is clean, as these factors are crucial for smooth and safe driving.
As an ordinary working-class car owner, I always want to save on fuel costs. While 92-octane gasoline is indeed cheaper and some older car models can use it without issues, most 2021 Volkswagen Tharu models have more refined engines. I checked the owner's manual, which recommends using 95-octane or higher. Using 92-octane long-term might not show immediate problems, but engine vibrations or increased noise could become troublesome, and repairs costing hundreds or thousands would be even more costly. The octane rating affects combustion efficiency, and lower-grade fuel is more prone to knocking during high-speed driving or climbing, accelerating wear. From a cost perspective, saving small amounts now could lead to bigger losses later, so it's better to use the recommended fuel. I also pay attention to gas station reputations to avoid impure fuel. Maintaining a car requires considering overall costs, not just the price per liter.
