What Happens When Gasoline Quality is Poor?

1 Answers
VanSilas
07/30/25 2:22am
Poor gasoline quality can lead to increased carbon deposits in the combustion chamber, cause knocking combustion, and result in reduced power and elevated temperatures. Below are the effects of gasoline quality on vehicles and the manifestations of fuel quality. Impact of gasoline quality on vehicles: Gasoline is the heart of a car, and whether its quality meets the national standards for automotive gasoline has a significant impact on the vehicle. Poor fuel quality can 'poison' the car, with minor effects like reduced acceleration and severe cases causing engine damage that requires disassembly for repair. Abnormal car malfunctions are often caused by the use of substandard gasoline. Manifestations of fuel quality: Standard fuel appears colorless, transparent, or golden yellow, while substandard fuel looks cloudy, dark, dull, and may contain suspended impurities. Qualified fuel has a faint, pleasant smell; substandard fuel, if diluted with water, may have a weak odor or extreme pungent and sour smells, leading to exhaust emissions with abnormal odors. Standard gasoline feels cool when dripped on the hand, while slow evaporation or residue indicates poor quality. Cars using substandard fuel may produce noticeable abnormal noises during driving, accompanied by vibrations. Shaking gasoline will produce bubbles; the faster the bubbles disappear, the better the fuel quality.
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