Question 8204
Does driving on a freeway at 120 km/h with the windows open affect fuel consumption?
- Yes, fuel consumption is higher than when driving with the windows closed.
- Yes, fuel consumption is lower than when driving with the windows closed.
- No, fuel consumption is the same as when driving with the windows closed.
Show answer and explanation
Correct answer: Yes, fuel consumption is higher than when driving with the windows closed.
Yes, you use more fuel than with the windows closed. At 120 km/h, air resistance uses up nearly 72% of the energy that moves the car, and opening the windows creates even more resistance.