Why Do Small Gas Stations Have Weak Performance?

[MacCamilla]

Although the gasoline at small gas stations is cheaper, the quality of the fuel is less reliable. Substandard gasoline contains more impurities, which can lead to abnormal combustion and damage the engine. It is not recommended to refuel at unofficial gas stations. Gas Station Overview: A gas station is a retail facility that provides gasoline and oil for cars and other motor vehicles, typically offering fuel and lubricants. Since petroleum products sold at gas stations are flammable, explosive, volatile, prone to leakage, and can accumulate static electricity, safety is the top priority at gas stations. Gas Station Precautions: Open flames are strictly prohibited at gas stations, as are any activities that may generate sparks. It is forbidden to add gasoline to a car's carburetor or oil drums. All vehicles must turn off their engines before refueling, and any hazardous materials are strictly prohibited on the premises.

[RobertFitz]

I drove long-haul trucks for several years before, and the most direct experience was that the vehicle lacked power after refueling at small gas stations. Their supply channels are unstable, often purchasing lower-quality fuel at cheaper prices, resulting in gasoline that fails to meet the required octane rating. The 92-octane fuel contains more impurities and insufficient octane, leading to incomplete combustion in the engine and naturally reduced power. Moreover, the storage facilities at small stations are outdated, allowing sediments and moisture at the bottom of the tanks to mix into the fuel, which can clog the fuel injectors and disrupt fuel supply. Before refueling, I recommend checking if the price is suspiciously low—such fuel is particularly noticeable on highways, where even pressing the accelerator to the floor won’t increase speed.

[DeAustin]

During maintenance at the auto repair shop, we found that many car owners complain about reduced power after refueling at small gas stations. The issues mainly stem from two aspects: First, small gas stations lack their own refineries and purchase blended fuels with insufficient additive content, leading to poor cleanliness, increased carbon deposits, and reduced combustion efficiency. Second, their fuel is prone to contamination during transportation, such as mixing with diesel or low-quality solvents, significantly lowering the ignition value of such blended fuels. One practical observation: if the engine sounds muffled and the exhaust emits black smoke after refueling, it's likely a fuel quality issue.

[ZaneFitz]

Once, a friend refueled at a small gas station before a road trip and noticeably felt a lack of power when going uphill. An expert later explained that small gas stations clean their storage tanks less frequently, and the gum deposits in the fuel lines can affect combustion efficiency. Their fuel has lower levels of antioxidants, making it prone to deterioration over time, with an actual calorific value about 10% lower than standard gasoline. When overtaking on the highway, the throttle felt sluggish, and acceleration was particularly strenuous. It's recommended to choose reputable gas stations before long trips, as at least their fuel quality test reports are complete.

[JocelynLynn]

The difference in fuel quality between large gas stations and small ones mainly lies in the base materials and refining processes. Small stations often use naphtha from local small refineries, which has a wide distillation range and more heavy components, resulting in slower combustion in the cylinders. Standard gas stations use catalytic cracking gasoline, which contains more light components and ensures complete combustion. Data estimates show that inferior fuel releases about 15% less energy during combustion, equivalent to losing two kilometers per liter. Additionally, the engine's computer may detect abnormal combustion and proactively reduce power to protect the equipment.

[DawsonAnn]

A neighbor in our community who drives a taxi has specifically tested fuel from different gas stations. Smaller gas stations often exhibit insufficient power, especially noticeable during high summer temperatures. This is because their underground fuel tanks are shallow, leading to significant temperature fluctuations that cause the lighter components to evaporate, leaving behind heavier components with higher ignition points that are harder to burn completely. When the fuel pump in the tank draws in high-viscosity fuel, the load increases, and insufficient fuel pressure directly affects acceleration performance. Last time, he used a fuel tester to check the fuel from a small station, and the actual octane rating was only 89, far below the labeled 92-octane standard.