What is the effect of long-term ECO mode on Emgrand GS?
2 Answers
What is the effect of long-term ECO mode on Emgrand GS? ECO is a car energy-saving mode, activating this mode can achieve the effect of saving energy. The principle of ECO: ECO mainly makes comprehensive judgments and analyses on conditions that affect fuel consumption during vehicle movement, such as automatic transmission gear, engine speed, vehicle speed, braking, and transmission oil temperature. The ECU control unit calculates the optimal fuel amount to provide the engine for work, effectively reducing fuel consumption compared to normal driving mode. Simply put, it controls the engine speed with reasonable gears to reduce unnecessary fuel consumption. When to turn on ECO: ECO works best when turned on in congested urban road conditions. In congested urban traffic, strong power is not needed, and the frequent stops and starts result in higher fuel consumption. Turning on ECO mode at this time not only reduces fuel consumption but also makes driving more comfortable.
Using ECO mode for a long time in the Emgrand GS is quite fuel-efficient. After driving for more than three years and recording fuel consumption at every refueling, it saves 1-2 liters per 100 kilometers compared to normal mode. It achieves this by softening throttle response and making the transmission upshift earlier to control engine speed, avoiding heavy acceleration. However, the downside is that the engine often runs at low RPMs, which can lead to carbon buildup and clogged fuel injectors, resulting in noticeably reduced power later on, like an old man struggling to climb a hill. I recommend not always using ECO mode; switch back to normal mode when encountering highways or slopes, and perform high-RPM engine cleaning at least once a month. Combining this with regular maintenance, such as throttle body cleaning, is more reliable to avoid spending more on repairs and ending up at a loss.
