As a chemical engineer with a focus on fuel technology, I can provide you with an in-depth understanding of gasoline and its properties.
Gasoline, like kerosene, is a petroleum distillate. This means it is a product derived from the distillation of crude oil. When gasoline is produced, it goes through a process that separates the different components of crude oil based on their boiling points.

Gasoline is a complex mixture of hydrocarbons, which are compounds made up of hydrogen and carbon atoms. The composition of gasoline can vary depending on the source of crude oil and the refining process used. It contains a variety of different hydrocarbons, including alkanes, cycloalkanes, and aromatic hydrocarbons.

One of the key characteristics of gasoline is its volatility. This means that it can evaporate easily, especially at high temperatures. This is important because it allows the gasoline to be atomized and mixed with air in the engine's combustion chamber, which is necessary for the engine to run.

However, gasoline also has a tendency to degrade over time. This degradation is due to a process called oxidation, where the gasoline reacts with oxygen in the air. This can lead to the formation of gum and varnish deposits in the fuel system, which can cause problems such as poor engine performance and even engine damage.

Now, when it comes to rejuvenating old gasoline, it's important to understand that gasoline does not have a "shelf life" in the same way that food does. It doesn't spoil or become inedible. However, the quality of gasoline can deteriorate over time, especially if it is exposed to air and heat. This is where fuel stabilizers come into play.

Fuel stabilizers are additives that are designed to prevent the oxidation and degradation of gasoline. They work by inhibiting the chemical reactions that lead to the formation of gum and varnish deposits. By adding a stabilizer to gasoline, you can help to maintain the quality of the fuel and prevent it from deteriorating further.

However, it's important to note that while stabilizers can help to preserve the quality of gasoline, they do not "rejuvenate" old gasoline in the sense of restoring it to its original state. Once gasoline has started to degrade, the process is irreversible. The stabilizer can prevent further degradation, but it cannot reverse the effects of oxidation that have already occurred.

In terms of practical advice, it is generally recommended to use gasoline within a year of purchase, especially if it is stored in a hot environment. If gasoline is stored for longer periods, it is a good idea to add a stabilizer to help maintain its quality. Additionally, it is important to store gasoline in a cool, dry place and to use a fuel additive that contains a corrosion inhibitor to protect the fuel system.

In conclusion, while it is not possible to rejuvenate old gasoline in the sense of restoring it to its original state, there are steps that can be taken to preserve the quality of gasoline and prevent it from deteriorating further. These include using fuel stabilizers, storing gasoline properly, and using additives that contain corrosion inhibitors.

read more >>

Everyone advises that you should add a stabilizer to gas as soon as you purchase gasoline. They are all adamant that no additive will restore old gasoline. The best you can hope for is that adding a stabilizer to old gas will stop any further degradation. ... Gasoline is considered a petroleum distillate, as is kerosene.Mar 1, 2016read more >>