Here are the average gas mileages for new cars in the United States in 2022, according to the U.S. Environmental Protection Agency (EPA):
* Gasoline cars: 25.4 MPG (miles per gallon)
* Diesel cars: 33.1 MPG
There are a few reasons for this difference.
* Diesel engines are more efficient than gasoline engines. Diesel engines operate at a higher compression ratio than gasoline engines, which means they can extract more energy from the same amount of fuel.
* Diesel fuel has a higher energy density than gasoline. Diesel fuel contains more energy per gallon than gasoline, so you can travel further on a gallon of diesel than a gallon of gasoline.
However, diesel cars also have some disadvantages compared to gasoline cars.
* Diesel cars are more expensive to buy than gasoline cars.
* Diesel cars produce more emissions than gasoline cars, including particulate matter and nitrogen oxides.
* Diesel cars can be more difficult to start in cold weather.
Ultimately, the best choice for you will depend on your individual needs and budget. If you are looking for a car that gets good gas mileage, a diesel car may be a good option. However, if you are concerned about emissions or the cost of the car, a gasoline car may be a better choice.