
Fuel-saving switch 1 is more powerful. Here are the relevant details: 1. Function: It adjusts the engine's output power, providing lower power when the vehicle is empty to save fuel, while delivering full power when heavily loaded to meet the vehicle's rigid demand for power. 2. Conditions: Switching this switch has certain conditions; the vehicle speed must be below 5 km/h, the engine speed below 800 rpm, and the throttle opening less than 5%. In other words, adjusting it while driving is ineffective, and it must be set before driving. 3. Vehicle Types: In trucks compliant with National IV standards or above, there is usually a dial or knob on the dashboard labeled with four positions: 'Heavy,' 'Medium,' 'Light,' and 'Empty.' This is the vehicle's 'Engine Multi-state Torque Switch,' commonly known as the 'Fuel-saving Switch.'

I've been driving for transportation for ten years, and many drivers have asked about the fuel-saving switch issue. Generally speaking, 0 is the economy mode designed to save fuel, where the engine output is limited, making the driving feel sluggish with slow acceleration; 1 is the normal or power mode, where the throttle response is quick and the power is strong with the restrictions lifted, making it particularly energetic. When driving on mountain roads or overtaking, switching to 1 makes the car noticeably more powerful, making uphill driving easier, but the fuel consumption increases by about 10% to 20%. I recommend adjusting flexibly based on road conditions: use 0 on flat roads for energy saving, and switch to 1 on critical sections like steep slopes or highways to ensure safe driving. Don't keep using 1 all the time for speed, as it consumes too much fuel and affects your wallet. Balanced use is the wisest choice.

From a technical perspective, the fuel-saving switch: 0 represents Economy Mode, where the ECU controls less fuel injection, reduces power output, lowers fuel consumption, but results in weaker performance. 1 is Power Mode, which reduces restrictions, allows full power output with strong torque, and indeed feels more exhilarating. Personally, after multiple tests, I've found that in Power Mode (1), the response during acceleration is fierce, with noticeable push-back sensation, while Economy Mode (0) feels sluggish. Especially when driving heavy-loaded vehicles, using Mode 1 makes it easier to tackle steep slopes. Note: prolonged high-load operation increases engine wear. For daily commuting, it's recommended to use Mode 0 for fuel efficiency. Switch to Mode 1 when strong power is needed, but always prioritize safety—don’t ignore fuel consumption impacts just for the sake of power.

In city driving, I often use the fuel-saving switch in 0-Economy mode, which significantly improves fuel efficiency and provides smooth acceleration. However, when driving on highways or climbing hills, I switch to 1-Power mode, which offers much stronger acceleration and makes overtaking easier. Therefore, 1-Power is more useful in these scenarios. But be aware that switching to 1-Power increases fuel consumption. It's recommended to adjust according to the situation and avoid keeping it in 1-Power mode all the time, as it consumes more fuel. For urban driving, 0-Economy is sufficient, safe, and cost-effective. Understand your needs and choose the appropriate mode.

Comparison between the two: 1 offers stronger power and ample performance, with the car surging forward as soon as the accelerator is pressed, making it suitable for highways or rough roads and boosting driving confidence; 0 is fuel-efficient but weaker, with a noticeable lack of power. From a safety perspective, I recommend using 0 on gentle routes to save fuel, and 1 for quick acceleration or when carrying loads to ensure fast response, but avoid overuse as it consumes fuel quickly. Switch between them reasonably to maintain engine health and drive with peace of mind.

Personal experience with the fuel-saving switch: 1 gives much more power, abundant energy, stable overtaking on long trips, fast uphill, and a great driving experience; 0 is energy-saving but sluggish, economical for city commuting. I believe the key is flexible usage—use 0 for energy-saving on flat roads and 1 for powerful performance in special scenarios. Don’t waste fuel just because the power is strong. Adjust according to road conditions while driving—saving money and staying safe. Develop good habits to avoid prolonged high-power output, extending vehicle lifespan.


