Why is cheap gasoline not durable?
4 Answers
Here is an introduction about why cheap gasoline is not durable: 1. Gasoline quality issues: The difference in power impact between 92 and 95 gasoline is not significant during use. Chemical analysis is required to distinguish them. 2. Insufficient refueling: The measurement at regular gas stations is relatively accurate. 3. Changes in vehicle condition: Deterioration of the vehicle condition may also lead to increased fuel consumption. Below is an introduction to National V gasoline: 1. Introduction one: National V standard gasoline does increase fuel consumption to a certain extent, but the impact is not too significant. Compared with 92 and 93 gasoline, it reduces by about one-fifth, with an increase in oxygen molecules and a decrease in other media and additive components. Sulfur is reduced by nearly five times, and manganese additives are reduced by nearly four times. These adjustments in components result in a decrease in octane rating by one grade. 2. Introduction two: Moreover, since 92 gasoline becomes more environmentally friendly, if calculated using cars with the same displacement, the sulfur dioxide emissions of five cars using 92 gasoline are equivalent to the emissions of one car using 93 gasoline. In this way, 1 million tons of fuel can reduce sulfur emissions by 40 tons.
I've used quite a few cheap gasolines and found they really don't last as long. Like that time I filled up with 92-octane from a small gas station—normally a full tank would get me 500 kilometers, but the low fuel light came on at just 380 kilometers. Why is that? From my driving experience, cheap gasoline is crudely refined with fewer additives, leading to incomplete combustion in the engine, which causes carbon buildup and drags down performance. When the power weakens, you end up pressing the accelerator more, and fuel consumption shoots up. I also talked to a mechanic friend who said impurities in the fuel can clog the fuel injectors. When the engine sensors detect this, they automatically increase the fuel injection rate, wasting gas for nothing. I’ll never skimp on fuel again—branded gasoline may be more expensive, but a full tank gets me dozens of extra kilometers, saving money and hassle in the long run. Oh, and regularly checking the air filter and fuel system can also improve combustion efficiency.
As someone interested in automotive mechanics, let me discuss the scientific principles behind fuel inefficiency. The octane rating of gasoline directly affects combustion efficiency. Lower-quality fuel often has unstable octane levels, which can cause pre-ignition or knocking in engines during high-speed driving. To protect the engine, the control system increases fuel injection, resulting in higher consumption. Through comparative fuel sample studies, I've found that cheaper gasoline contains more sulfur compounds, leaving residue after combustion and causing black smoke from the exhaust. After switching to premium fuel with detergent additives that promote more complete combustion, it's common to gain an extra 1-2 kilometers per liter. This also relates to emissions and environmental protection - incomplete combustion pollutes the air, making it counterproductive. When choosing fuel, pay attention to gas station certification labels to ensure compliance with China VI emission standards.
From a practical cost-saving perspective, I've compared the cost-effectiveness of cheaper fuel versus regular fuel. For example, the gasoline at a small gas station near my home is 0.5 yuan cheaper per liter. However, actual tests showed that with the same 50-liter fill-up, the cheaper fuel only lasted for 450 kilometers, while branded fuel could reach 520 kilometers. This translates to an additional 1 liter of fuel consumed per 100 kilometers. In the short term, it may seem like saving some money, but on long-distance trips, the total cost is actually higher. The reason might be the lower purity of the fuel, causing slower combustion after being drawn into the engine, with the computer automatically compensating by injecting more fuel. I suggest car owners keep a simple record: note the mileage when refueling and calculate the fuel consumption after driving, rather than just looking at the unit price. In the long run, higher-quality fuel reduces engine wear and saves on maintenance costs.
