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Why do you get poorer gasoline mileage from your car in winter than in summer?

Why do you get poorer gasoline mileage from your car in winter than in summer?

Grade:11

2 Answers

Aditi Chauhan
askIITians Faculty 396 Points
7 years ago
Gasoline is a cold vapor. In winter, the temperature of the atmosphere goes down than the summer. So gasoline will be colder in winter than summer. Hence in winter season the pressure exerted by the gasoline to move the piston in the engine is less than the summer at same temperature. Thus at same temperature, in summer, the gasoline will be exert more pressure to move the piston in the engine, as a result you get more mileage. That is why you do get poorer gasoline mileage from your car in winter than summer.
Mariam Sajjad
24 Points
5 years ago
In winter temperature of gasoline decreases so the density and viscosity increases which result in poorer gasoline mileage in winter than in summer 
 As temperature is invesely proportional to viscosity as well as density, and when the density of gasoline increases it becomes difficult for car to cover good gasoline mileage in winter.

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