Ways to lower the octane number of gasoline

Content

Find out the octane number
Octane reduction methods
Tips

One of the main parameters of gasoline is detonation. An indicator of this quality is the octane number. The higher it is, the better, because the motor runs longer and more efficiently. But in some situations it is necessary to lower the indicator. This can be done in different ways.

Find out the octane number

To begin with, the number of gasoline is determined if it is not known in advance. To find out, you should compare the fuel with a standard of isooctane and heptane. There are several ways to find out:

Research - use a single-piston engine, not simulating a ride. Perhaps the figure will be too high.
Motor - imitation of driving due to a single-piston engine. Perhaps the figure will be underestimated.
Chromatographic - is used additionally, allows you to identify impurities.
With the help of special portable devices - the method gives the most accurate data.

Now, knowing the number, you can start lowering it. And this can be done in various ways.

Ways to lower the octane number of gasoline

Octane reduction methods

There are few options, but they are all effective. The choice depends on personal preference. You can reduce:

Long term storage.
sulfur compounds.
Gasoline with a lower octane rating.

The first option is the least labor intensive. It is enough to place gasoline in a container and store as much as necessary to reduce the rate. If stored incorrectly, during the day the number will change by 0,2-0,4.

In the second case, the number is lowered by sulfur compounds, but resinous substances can also be added. Perhaps this is the most difficult option, since the above still needs to be obtained.

In the third case, gasoline with a lower rating is added to high-octane fuel, and this method is the fastest and most convenient for most. The method is especially comfortable and accurate in combination with the control of the result due to portable devices intended for this.

Ways to lower the octane number of gasoline

Tips

To correctly lower the octane number of gasoline, you must:

Preliminary: determine the methods of control and the method of increase, formulating priorities (speed, efficiency, or both).
Use protective equipment in the process.
Use the most accurate measurement method, but do not be afraid to use several measurement methods, because devices can also fail.

Lowering the octane number is not carried out under industrial conditions, since it is not economically justified. An independent decrease in the indicator is achieved without any problems, and the easiest way is to leave gasoline for some time in an open container.

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