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How to Distinguish the Quality of Gasoline?

4 Answers
ORiver
07/25/25 5:51am
Gasoline quality can be distinguished by its color and smell. Here is an introduction to gasoline: 1. Definition: It is a volatile, flammable hydrocarbon mixture liquid obtained from petroleum through distillation, cracking, or pyrolysis, primarily used as fuel for spark-ignited internal combustion engines. 2. Categories: It mainly includes organic compounds derived from crude oil distillation and various additives. 3. Function: Based on different octane ratings, gasoline can be classified into several grades. Other chemicals are often added to gasoline to improve chemical stability and other properties, control corrosiveness, and maintain fuel system cleanliness.
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AlexandraFitz
08/11/25 12:54pm
The key to distinguishing between good and bad gasoline lies in daily driving experience. After years of driving, I've found that high-quality gasoline makes the engine run smoothly, with quick starts, strong acceleration, and responsive throttle. Poor-quality gasoline immediately shows problems, such as engine knocking, a sudden increase in fuel consumption by several liters, or even difficulty starting. The most noticeable signs are the engine sound and exhaust emissions—good gasoline burns completely, with no smoke or strange odors, while low-quality gasoline produces black smoke or pungent smells and may cause significant vibrations. I recommend choosing reputable gas stations like Sinopec or Shell, which have stable fuel sources and more additives. In hot weather, gasoline evaporates faster, so freshness is crucial—avoid cheap, old stock from small stations, as it can damage components and increase repair costs. Safe driving comes first; if you suspect fuel issues, stop immediately to check and prevent accidents.
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ElianaAnn
09/27/25 5:04am
From a chemical perspective on gasoline quality, I've studied additive components. High-octane fuels like 92 and 95 have good anti-knock properties, suitable for high-performance vehicles, but there's no need to blindly believe in high grades—regular cars can use them just fine. The key lies in additive content—those with detergents can remove carbon deposits and protect the engine; ethanol gasoline has lower combustion efficiency, may reduce power, and has water separation issues, making it unsuitable for long-term use. Low-quality fuels contain more impurities like sulfur and particles. When refueling, clear and transparent color is good, while turbidity and sedimentation indicate poor quality. Consulting experienced drivers on forums and choosing certified gas stations like TOP TIER is more reliable. Temperature has a significant impact; use anti-freeze formulations in winter to avoid freezing and clogging fuel injectors. Don't skimp on fuel—spending a bit more brings peace of mind and saves on repair costs.
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CharlesLynn
11/10/25 7:04am
The quality of gasoline is crucial when maintaining a vehicle. Poor-quality fuel can corrode the fuel tank and injectors, leading to carbon buildup and blockages, which may trigger issues like the engine light turning on and sluggish acceleration. Through regular maintenance, I've found that high-quality gasoline extends engine life and reduces repairs, while poor-quality fuel not only increases fuel consumption but also accelerates part wear, leading to frequent filter replacements and higher costs. When choosing fuel, opt for reliable brands and major stations that offer stable supply and purer formulations. Personally, you can perform simple tests like checking viscosity or avoiding fuels with a pungent odor. For long-term use, pay attention to seasonal changes and blending issues, and regularly clean carbon deposits.
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