How to check gasoline?
Unfortunately, recently it is not always possible to buy high-quality gasoline. Diluted fuel of poor quality is found on sale at many gas stations, so you need to learn how to determine the quality of the fuel yourself. The surest indicator of the quality of gasoline for an experienced driver is the excellent work of his car. What do inexperienced drivers do? You can test the quality of gasoline at home.
You will need a sheet of white paper. Put some gasoline on it and blow it to the place soaked with gasoline. Blow until gasoline evaporates into the air. Now carefully consider a piece of paper: if it has retained its original white color, then you have sold a quality product; if the color has changed and a trace of evaporated gasoline remains on the sheet, then you can safely declare the poor quality of fuel.
An important criterion for the composition of the fuel is the percentage of tar. How to check gasoline for tar content? If the resin is abundant, then the car's engine during use and operation will be significantly damaged.
Apply a drop of gasoline on the convex glass (for example, on the glass of the watch). Set fire. On this glass should appear spherical circles, consider carefully the color, which was the result of the reaction. If the circles have a brownish or yellowish color, then gasoline contains too much resin, if the color is whitish, then everything is in order. Check whether small droplets remain after combustion. If so, then the fuel at the gas station was diluted with diesel or oil.
It will help you to find out what the quality indicators of gasoline are and to make a check at home. You will need transparent dishes and a few reagents that will not be difficult to find at home. Suitable potassium permanganate, sour potassium, and best of all a piece of slate from a simple pencil. Put gasoline in the dish, look at it in bright light. The liquid should have a pale yellow color. Now add a little of one of the reagents to the liquid and examine in the light what changes have occurred. If the color has changed, for example, it has become pinkish or purple, then this is a clear sign that there is an admixture of water in the gasoline used.
And the last test is the simplest, which can be carried out directly at the gas station itself. You only need gasoline. Put on your hand a drop of gasoline. If gasoline begins to flow, turns into one fat spot, then this fuel has a large amount of impurities. If gasoline dried up immediately, then do not doubt its quality.