What is the difference between methanol gasoline and ethanol gasoline?

[DeChase]

Methanol gasoline and ethanol gasoline differ most significantly in that: methanol gasoline has the lowest price, varies greatly in methanol content, is essentially an alcohol-based fuel, has the lowest density, and is the least stable in use. Ethanol gasoline, typically made by blending 10% modified ethanol with regular gasoline, costs more than standard gasoline. Methanol gasoline provides greater power than ethanol gasoline, while ethanol gasoline has higher fuel consumption. Specific details are as follows: 1. Methanol gasoline: Methanol gasoline is a low-carbon energy source that can replace regular gasoline and is specifically designed for use in gasoline internal combustion engine vehicles. It is produced by blending industrial methanol or fuel methanol with denatured alcohol additives and existing national standard gasoline in specific volume ratios. Methanol gasoline offers advantages such as good substitutability, strong power, and low pollution. 2. Ethanol gasoline: Ethanol gasoline is a new alternative energy source formed by mixing fuel ethanol, processed from grains and various plant fibers, with regular gasoline in a certain proportion. Ethanol gasoline is blended from 90% regular gasoline and 10% fuel ethanol. Ethanol is a renewable energy source, produced through the fermentation of crops like sorghum, corn, and potatoes. It does not affect vehicle performance and reduces emissions of harmful gases.

[DelDominic]

As a long-haul truck driver, I've used two types of gasoline with notable differences. Methanol-blended fuel is cheaper but has higher consumption – a full tank gives me dozens fewer kilometers. It performs poorly in cold starts, requiring preheating in winter, and sometimes corrodes rubber fuel line components. Ethanol gasoline, made from corn starch, burns cleaner and helps clean engine carbon deposits. Neither can be mixed with regular gasoline as it causes fuel stratification and engine damage. Methanol fuel suits northern industrial zones with more refueling stations, while ethanol gasoline is common in grain-producing regions. Gas station attendants say fuel system conversion costs are similar – the key factor is local supply availability.

[MacAlan]

I remember the first time I used methanol gasoline, the car shook violently and emitted black smoke. The auto repair shop owner told me that methanol gasoline has high oxygen content, and if the ECU of low-end cars isn't calibrated properly, incomplete combustion can easily occur. Ethanol gasoline is milder but poses a corrosion risk to fuel pumps in older cars. Both types of fuel have short shelf lives, so don't keep them for more than a month after opening. In terms of performance, methanol gasoline has stronger explosive power, while ethanol gasoline runs smoother. I've checked the environmental data: methanol gasoline production consumes more energy but has lower carbon emissions. Ethanol gasoline relies heavily on agricultural resources, which may drive up food prices.

[LeCali]

I specialize in researching alternative fuels for new energy, and have found that the fundamental difference lies in the raw materials. Methanol is a product of coal chemical industry, while ethanol comes from biological fermentation. Domestically, methanol suffers from overcapacity and significant price fluctuations; ethanol is deeply influenced by grain policies. In terms of molecular structure, methanol contains one carbon atom, whereas ethanol has two, resulting in the latter having approximately 30% higher calorific value. In corrosion tests, methanol causes more damage to aluminum components, while ethanol easily dissolves oil sludge. Regarding storage, ethanol gasoline has stronger water absorption, requiring attention to sealing. Currently, the technical challenges revolve around cold start performance and improvements in material compatibility.