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Can 92 Ethanol Gasoline and 92 Regular Gasoline Be Mixed?

2 Answers

McGenesis

07/28/25 6:09pm

92 ethanol gasoline and 92 regular gasoline can be mixed temporarily without causing significant harm to the vehicle. However, long-term mixing may have certain impacts. Below is more information about 92 ethanol and 92 gasoline: 1. Ethanol gasoline is a new alternative energy source formed by blending fuel ethanol (processed from grains and various plant fibers) with regular gasoline in a specific ratio. According to China's national standards, ethanol gasoline consists of 90% regular gasoline and 10% fuel ethanol. Ethanol is a renewable energy source, produced through the fermentation of crops such as sorghum, corn, and potatoes. 2. 92 gasoline refers to gasoline with an octane rating of 92, suitable for mid-range vehicles. Considering the current production, storage, transportation, and usage of gasoline products, as well as the technological transformation needs of oil product manufacturers and vehicle emission control requirements, its main indicators are comparable to current European standards. It meets the requirements of China's Phase V vehicle pollutant emission standards, helps reduce vehicle emissions, and plays a significant role in environmental protection and improving air quality.

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DelArthur

08/11/25 11:57pm

I've been driving for over a decade. Occasionally, after filling up with E10 ethanol-blended 92 octane gasoline at the gas station, I'd top up with regular 92 octane fuel before the tank was empty. Mixing them together, the car ran quite smoothly without any noticeable issues. The engine sound remained normal, with slightly slower acceleration but not significantly so. However, a friend mentioned that ethanol has strong water-absorbing properties, and prolonged mixing could lead to moisture accumulation, potentially corroding fuel lines or sensors. Additionally, different batches of fuel may have varying formulations, and long-term mixing might reduce ignition efficiency. It's best to refer to the vehicle manual—if it states compatibility with E10 fuel, then it's fine; otherwise, stick to one type of fuel for peace of mind and to avoid costly repairs. For daily driving, I prioritize stable gas stations to prevent frequent mixing from causing minor issues.

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Should the Volkswagen Santana use 92 or 95 octane gasoline?

According to the official car manual recommendation, the Volkswagen Santana should use 92 octane gasoline. In addition to checking the suitable gasoline grade in the car manual, the Volkswagen Santana can also check it on the fuel tank cap, which will also be marked. Usually, the gasoline grade can also be determined based on the engine compression ratio. Cars with an engine compression ratio between 8.6-9.9 should choose 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should choose 95 octane gasoline. However, with the use of some new technologies nowadays, the gasoline grade cannot be solely determined by the compression ratio. A high compression ratio can also be adjusted to use lower-grade gasoline. This is because, apart from the compression ratio, there are other influencing factors such as ignition timing, turbocharging technology, and Atkinson cycle technology. Generally, the higher the gasoline grade, the higher the octane number and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. If the Volkswagen Santana occasionally uses the wrong gasoline grade, simply switch back to the correct gasoline grade after use. However, if the wrong gasoline grade is used for a long time, the following effects may occur: For vehicles recommended to use lower-grade gasoline, using higher-grade gasoline by mistake will not cause damage, but the increase in octane number will change the fuel's ignition point, leading to delayed combustion in the engine. This means the engine's power output and thermal efficiency will decrease, and the actual feedback experience is reduced power. For vehicles recommended to use higher-grade gasoline, using lower-grade gasoline will cause engine knocking. Because the octane number is too low, the fuel's ignition point decreases and may ignite prematurely during the compression stroke. If combustion occurs before the spark plug ignites during the compression stroke, resistance will appear during the upward stroke. This resistance will make the engine run very unstably. If it is only slight knocking, the noise will increase, but the damage to the engine is not obvious. If there is obvious knocking, it indicates that the engine's condition is already very severe. The vibration not only affects driving stability but also causes abnormal wear of the piston and cylinder, and in severe cases, cylinder scoring may occur.

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After the car has been exposed to the sun, it is necessary to fully open the windows or doors to allow the harmful gases inside the car to completely dissipate, creating a relatively normal environment inside the vehicle. Only when the interior temperature has dropped is the best time to turn on the air recirculation mode. Here is some additional information: 1. External Circulation: In this mode, the fan draws air from outside the car into the interior, meaning there is a flow of air between the outside and inside of the car. The air blown by the fan comes from outside, and even if the fan is not turned on, air will still be drawn into the car while driving, replenishing the fresh air inside. Sometimes, you may feel air coming in even when the fan is off—this is because the external circulation mode is set. 2. Internal Circulation: In this mode, the airflow passage between the inside and outside of the car is closed. Without the fan, there is no airflow circulation, and when the fan is turned on, the air drawn in comes only from inside the car, creating an internal airflow cycle. The internal circulation mode is mainly used to effectively and promptly block external dust and harmful gases from entering the car, such as when driving through areas with smoke, dust, strong odors, or when driving in heavy traffic where harmful exhaust fumes from the car in front need to be blocked.

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Where is the Buick automatic mirror folding switch located?

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