What is the fuel consumption of the BYD Tang DMI cruising at 120 km/h on the highway?
3 Answers
The fuel consumption of the BYD Tang DMI cruising at 120 km/h on the highway is 4.0 liters per 100 kilometers. More details about fuel consumption are as follows: 1. Introduction: Constant-speed fuel consumption refers to the fuel economy indicator when a car is driving at a constant speed on a good road surface. Since constant-speed driving is a basic operating condition for cars on highways, and this type of fuel consumption is easy to measure, it is widely adopted. For example, France and Germany use the constant-speed fuel consumption at 90 km/h and 120 km/h as the main evaluation indicators for fuel economy. China also adopts this indicator. 2. Road cycle fuel consumption: Road cycle fuel consumption is a fuel economy indicator measured when a car drives repeatedly on the road according to specified speed and time regulations, also known as multi-condition road cycle fuel consumption. In the speed and time regulations, each cycle includes various driving conditions, and specifies the shifting time, braking and stopping time, as well as the values of driving speed, acceleration, and braking deceleration for each cycle.
When I cruise at 120 km/h on the highway with my BYD Tang DM-i, the average fuel consumption is around 7.5 liters per 100 kilometers. I find this data quite stable, as I've tested it several times on long trips from Guangzhou to Shenzhen, maintaining a constant speed of 120 km/h on the highway, with the displayed fuel consumption fluctuating between 7.4 and 7.7 liters. There are many influencing factors, such as increased wind resistance or full load, which can raise the fuel consumption to 8 liters. Using air conditioning in summer also adds a slight increase. Overall, the DM-i system primarily relies on the gasoline engine at high speeds, but it doesn't perform much worse than a pure gasoline car. The key is that it saves a lot on fuel and costs in urban driving by using electricity. I recommend maintaining a steady speed on the highway, avoiding sudden braking or acceleration, and regularly checking tire pressure to optimize fuel consumption to as low as around 7 liters. In general, the Tang DM-i performs reliably on the highway and is trustworthy.
From my interest in hybrid technology, the BYD Tang DM-i consumes around 7-8 liters per 100 kilometers when cruising at 120km/h on highways, mainly because the gasoline engine directly drives the wheels with minimal electric assistance. Based on actual test reports I've referenced, the typical figure is 7.6L, while factors like vehicle weight, aerodynamic drag, or uphill driving can push consumption above 8 liters. The system is well-optimized to minimize energy loss, showing higher efficiency compared to older hybrid models. Maintaining proper tire pressure and using the air conditioner in eco-mode can also help. During highway cruising, I focus on steady-speed driving, keeping consumption around 7.5 liters—about 20% more economical than pure gasoline vehicles, offering excellent value.
