Aditi Chauhan
Last Activity: 9 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.