Everyone knows a lot about gasoline and ethanol gasoline. What about methanol gasoline?

　　食物有保質期，時間久了就會變質，同樣甲醇汽油也有保質期。

　　Food has a shelf-life, which will deteriorate over time, as well as methanol and gasoline.

　　汽車現在作為已經普及的交通工具，家家戶戶都有了，有部分人是經常用車族，也有的人在平時用車較少，汽車經常閑置，可能一停就是幾個月。

　　As a popular means of transportation, automobiles now exist in every household. Some people often use automobiles. Others use less cars in peacetime. Cars are often idle. They may stop for several months.

　　發動機就像是人的胃一樣，甲醇汽油就是食物，長時間存放的甲醇汽油到底能不能繼續使用了呢？

　　Engines are like human stomachs. Methanol gasoline is food. Can methanol gasoline stored for a long time continue to be used?

　　甲醇汽油就是甲醇和添加劑和汽油的混合產物，眾所周知甲醇具有親水性，長時間暴漏在空氣中的甲醇會吸水。汽油中的主要物質的分子結構是碳元素和氫元素，汽油長時間裸露在空氣中也會發生緩慢的化學反應，和氧氣發生反應會產生膠質！

　　Methanol gasoline is a mixture of methanol, additives and gasoline. It is well known that methanol is hydrophilic, and methanol leaking in the air for a long time will absorb water. The molecular structure of the main substances in gasoline is carbon and hydrogen. Gasoline exposed in the air for a long time will also undergo slow chemical reactions, and react with oxygen to produce colloids!

　　當甲醇汽油中水分超過一定量時候，其會發生分層的現象，也就是油水分層！

　　When the moisture content in methanol gasoline exceeds a certain amount, it will occur stratification phenomenon, that is, oil-water stratification!

　　發生變質的甲醇汽油在發動機內燃燒時會發生燃燒不充分的情況，會產生焦黑色的積炭化學物質，這些燃燒產生的物質會使發動機內壁、活塞、氣門產生摩擦、損壞和堵塞，長時間進而造成發動機產生故障。

　　When the deteriorated methanol gasoline is burned in the engine, it will cause insufficient combustion, which will produce coke-black COKE-DEPOSITED chemicals, which will cause friction, damage and blockage on the inner wall, piston and valve of the engine, and then cause engine failure for a long time.

　　所以說甲醇汽油也是有保質期的，通過科學的實驗和總結，甲醇汽油在密封良好的情況下可以存儲一年，在敞口接觸空氣后可以存儲的時間為3-5個月。

　　So methanol gasoline also has a shelf life. Through scientific experiments and summary, methanol gasoline can be stored for one year under the condition of good sealing, and the storage time after exposure to air is 3-5 months.