You get farther on a gallon of gas when driving on the highway, than when you drive in the city. This is because in the city you have more stop and go situations that are wasteful. The solid proof that is the irrefutable EPA sticker on all gasoline only or diesel only cars sold. Take careful note to see that the miles you get on a gallon of gas or diesel is less for city driving than it is for highway driving.
Further, if you use more gas to get around town then you also cause more pollution. Specifically, you use less gas and less pollution if you do all of your shopping at one location, like a nearby mall, than driving all around town to many different stores.
Hybrid cars wil get better mileage under highway driving conditions as is the case with most cars. Stop and go city driving uses a decrease in efficiencey in any vehicle type.
30% is the dvla answer
If you mean does the A/C cause the engine to use more fuel, the answer is yes and no. In city driving the A/C does indeed cause the engine to use more fuel. On the highway at speed, the engine uses about the same amount of fuel with the A/C on as with the A/C off and windows down. It also depends on the model year of the car. Older cars have A/C compressors that require more power to drive.
I have been told that it does. I have one vehicle with air conditioning and when I turn on the air I can hear the motor lug just a little. The compressor that circulates the gas that creates the cooling must require some energy from the motor therefore taking some energy from what goes to the drive train. When the air is off, the compressor free spins and saps no energy from the motor. Since I am not an expert, this an opinion rather than a fact.I have seen quite a few studies, that confirmed that a car uses less fuel with the A/C on at highway speeds, as compared to the same vehicle traveling with the windows down and A/C off. The open windows create more drag than does the compressor and that decreases mpg. In city driving it definitely uses more fuel with the A/C on.Yes it will use a little more fuel in around town driving. But open highway driving; It takes the same amount of fuel due to drag withthe windows open aswith the A/C on. So either way the fuel mpg is the same on highway driving. The comfort in town and short trips, heck use the air if need be.
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No. It uses 12 liters per 100 k in city driving and 7.8 liters per 100 k on the highway. There are two different 4 speed auto transmissions. One has 17 bolts on the pan the other has 19 bolts on the pan. The 19 bolt one uses the highest possible gear in the city and locks up as soon as it can. This one give the best milage and fits the numbers above. If you have the 17 bolt tyranny and it needs fixing, be sure to replace it with the 19 bolt one, it gives better fuel economy and is more reliable.
In the city, a car has to brake frequently. Energy is usually wasted in that case. Also, for example, in front of a red traffic light, the motor continues to waste gasoline even though the car doesn't advance.Note that the car uses more gasoline per km., not necessarily per hour.
my V70 2.4 Diesel uses AVERAGE 5.9 l/100km (includes 2/3 city 1/3 highway)
Overdrive is for highway driving, which is great for gas mileage. Also, not to use overdrive when going up or down hills because it makes your transmission work harder. That's what I was told anyways.
Driving a newer car is greener than driving an old car because an older car would give out less toxic omissions and also uses a lot more energy. However, the new cars are much more energy efficient.
That depends on the car. What car are you talking about?
The Interstate Highway standards for the U.S. Interstate Highway System uses a 12-foot standard for lane width.