When each car leaves the factory, the manufacturer will set a basic gasoline filling label for the car according to the engine model and the displacement of the car. Ordinary family cars are generally recommended to add No. 92 gasoline, Mercedes-Benz, BMW and other luxury brands of cars are recommended to add No. 95 gasoline, if it is a rolls-Royce Maybach and other top luxury cars, generally add No. 98 gasoline.
What label of gasoline is added to the car is only a suggestion given by the manufacturer, if the owner is willing, it is also possible to add No. 95 gasoline to the vehicle marked with No. 92 gasoline. Although the labels of these two kinds of gasoline are different, they can make the car move, of course, the feeling of the car will be different.
The additive composition of No. 92 gasoline and No. 95 gasoline is not the same, and the isooctane number of No. 92 gasoline is lower than that of No. 95 gasoline, and the knock resistance is also worse than that of No. 95 gasoline. Many people will wonder if a car will change if it is added to No. 92 gasoline for a long time, and then suddenly switched to No. 95 gasoline.
The owner of the car, Mr. Wang, bought a Volkswagen Magotan, and the suggestion written on the fuel tank cover was to fill no. 95 gasoline. But now the price of No. 95 gasoline is very expensive, and a liter of gasoline costs more than 8 yuan. Mr. Wang felt that it was too luxurious to add No. 95 gasoline to an ordinary family car, so he had been adding No. 92 gasoline to the car since the day he first bought the car.
But Mr. Wang has always heard from friends that the car with No. 95 gasoline is more powerful, and he has not experienced this feeling, so he wants to try it. At the end of last year, Mr. Wang went to clean up the oil road, replaced the No. 92 gasoline with no. 95 gasoline, and now he has been adding no. 95 gasoline for three months.
Before adding No. 92 gasoline to the car, the position of ignition felt relatively backward, replaced by No. 95 gasoline or the ignition position of the car was moved forward, and the ignition speed was faster. And after adding No. 95 gasoline, the power output of the car is stronger than before, and the engine noise is also reduced.
After entering 2022, the price of gasoline has been rising, and now the price of No. 92 gasoline has also risen to more than 8 pieces, which is only 5 cents cheaper than No. 95 gasoline. Mr. Wang felt that instead of adding No. 92 gasoline to save 5 cents, it would be better to add No. 95 gasoline.
Why is No. 95 gasoline more powerful than No. 92 gasoline?
Some people think that this may just be the psychological effect of the owner, but it is not. The substances added to No. 92 gasoline and No. 95 gasoline are different, and in addition to the isooctane number just mentioned, the density of No. 92 gasoline and No. 95 gasoline is also different. The density of No. 95 gasoline is 0.737 kg per liter, while the density of No. 95 gasoline is 0.725 kg per liter of gasoline, and No. 95 gasoline is 0.012 kg heavier than No. 92 gasoline.
When the engine is working, the amount of fuel injected by the fuel injector is calculated by volume, and the higher the amount of oil sprayed per unit volume, the higher the combustion efficiency of the engine, and the more sufficient the power obtained. The same is a liter of gasoline, the energy density of No. 95 gasoline is high, and the more energy it provides to the car, its power is more than That of No. 92 gasoline.
summary:
The quality of gasoline will affect the overall performance of the car, when refueling the car, the owner will refuel according to the recommendations given by the manufacturer. However, this is only a suggestion, you can fill gasoline according to your own needs. As long as the quality of the gasoline is qualified, it will not affect the life of the engine.
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