What does comprehensive fuel consumption mean?
2 Answers
Comprehensive fuel consumption refers to the fuel consumption of a vehicle traveling 100 kilometers at a certain speed on the road. It is a theoretical indicator of the vehicle. The 100-kilometer fuel consumption is a value measured by the manufacturer under objective conditions, where the value measured by a dynamometer installed on the vehicle chassis is converted into speed parameters, and the theoretical experimental data of the 100-kilometer fuel consumption is calculated according to a specified speed model. Extended information is as follows: 1. Fuel consumption: Fuel consumption is also divided into constant-speed fuel consumption and road cycle fuel consumption. Constant-speed fuel consumption refers to the fuel economy index when a car is driving at a constant speed on good roads. Road cycle fuel consumption is a fuel economy index measured when a car drives in repeated cycles according to specified speed and time specifications on the road, also known as multi-process road cycle fuel consumption. 2. Methods to reduce fuel consumption: Summer air conditioning system checks are essential; frequent sudden braking is the main reason for high fuel consumption; the air conditioning in small-displacement vehicles should not be turned on too aggressively.
As a veteran driver with over 20 years of experience, I've always paid attention to the concept of combined fuel consumption. Simply put, it refers to a vehicle's average fuel consumption under mixed driving conditions, such as the average of stop-and-go city driving and highway cruising, not just one or two occasional figures. The data we usually see from the Ministry of Industry and Information Technology is this type, typically measured in liters per 100 kilometers. But based on my experience, actual fuel consumption is often 10% to 20% higher than the official figures, because driving habits and road conditions are highly variable. For example, running the air conditioning in summer or driving fully loaded on long trips can cause fuel consumption to spike; whereas gentle driving and maintaining proper tire pressure can save a lot on fuel costs. So when buying a car, don’t just look at the nominal fuel consumption—referencing real feedback from owner forums is much more reliable.
