What does it mean to limit the use of unleaded gasoline above 93 octane?
3 Answers
Limiting the use of unleaded gasoline above 93 octane refers to the research octane number (RON) of gasoline, meaning that the RON of 93-octane gasoline must not be lower than 93. Many people mistakenly consider unleaded gasoline as harmless green gasoline, leading them to relax their guard against vehicle exhaust in daily life. However, there are still significant pollution issues, and it poses certain hazards to human health, so caution is advised. Specific details are as follows: 1. Unleaded gasoline above 93 octane: This refers to gasoline with an octane rating no lower than 93. 2. Pollution issues: Unleaded gasoline does not contain added tetraethyl lead during the refining process. However, many people mistakenly regard unleaded gasoline as harmless green gasoline, neglecting precautions against vehicle exhaust in daily life. In reality, unleaded gasoline still presents numerous pollution problems.
Use unleaded gasoline with an octane rating of 93 or above, which means your vehicle requires fuel with an octane level of 93 or higher, such as 94 or 95. The gasoline number is essentially a code for the octane rating—the higher the number, the better the anti-knock performance. My understanding is that high-compression engines, like those in some luxury or high-performance cars, may experience knocking (that rattling sound) if lower-octane fuel is used. Prolonged use can damage or even destroy the engine internals. The unleaded aspect primarily protects the catalytic converter and reduces exhaust pollution, preventing lead poisoning. I always drive such cars and double-check the gas station labels when refueling to ensure I get the right fuel—safety first. Different countries use varying calculation methods; in China, 93-octane typically refers to the Research Octane Number (RON), so opting for a higher grade is more reliable.
My car has always required unleaded gasoline with an octane rating of 93 or higher. In fact, the gasoline number refers to the octane rating, and 93 or above is considered high-octane fuel. Regular cars might be fine with using 87, but my engine is designed to rely on high-octane fuel to prevent knocking issues. After using lower-octane fuel, I clearly feel engine vibrations or increased noise during acceleration, which can be dangerous and potentially damage the car. The benefit of unleaded gasoline is that it's environmentally friendly and prevents carbon buildup. When refueling, I always prioritize 95 or 98 octane, even though it's more expensive, as it saves on repair costs in the long run. I recommend checking the manual to confirm requirements, as different car models have different needs—don't risk saving money now only to incur bigger losses later. Also, be cautious about fuel labels when refueling in unfamiliar areas to avoid using the wrong type of fuel.
