Which is more powerful, fuel-saving switch 0 or 1?
3 Answers
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.
