Are Diesel Cars Fuel-Consuming?
2 Answers
In fact, diesel cars are not considered fuel-consuming. Fuel consumption depends on the horsepower of the engine, and different horsepower engines have varying fuel consumption rates. Additionally, different types of diesel vehicles also exhibit different fuel consumption levels. Specific models are as follows: 1. Large freight vehicles. 110/100 (engine horsepower/10) = fuel consumption per 100 kilometers. 2. Light diesel vehicles. 120/100 (engine horsepower/15) = fuel consumption per 100 kilometers. 3. Passenger cars. 130/100 (engine horsepower/20) = fuel consumption per 100 kilometers. Furthermore, factors such as the vehicle's age, transmission structure, gear ratio, maximum speed, driving conditions, and the driver's habits, among many others, also play a significant role.
As someone who has driven trucks for over a decade, I can tell you diesel vehicles aren't actually fuel-guzzlers. On the contrary, they're much more fuel-efficient than gasoline vehicles of the same displacement. Diesel engines have higher compression ratios, with thermal efficiency exceeding 45%, while gasoline engines barely reach 30%. When hauling one ton on highways, my 6-liter diesel engine consumes only 12 liters per 100 km, whereas my friend's gasoline light truck with equivalent horsepower drinks 18 liters. Of course, fuel consumption depends on load and road conditions - even empty trucks consume around 10 liters in city driving. Nowadays, new diesel vehicles come with urea systems requiring regular AdBlue refills, which adds to the operating costs.
