Toyota ECO mode does not need to be turned off, but it should not be kept on for extended periods. The ECO mode primarily makes comprehensive judgments and analyses during vehicle movement regarding factors that affect fuel consumption, such as automatic transmission gear position, engine speed, vehicle speed, braking, and transmission oil temperature. The ECU control unit then calculates the optimal fuel quantity to supply the engine, effectively reducing fuel consumption compared to normal driving mode. However, prolonged use of ECO mode, while lowering fuel consumption, can increase engine carbon deposits. This is detrimental to the engine, as it increases engine stress and may lead to higher fuel consumption later. Therefore, although ECO mode saves fuel, it should be used selectively. When to activate ECO mode: ECO mode works best in congested urban traffic conditions. In such scenarios, strong power is not required, and the frequent stop-and-go driving results in higher fuel consumption. Activating ECO mode not only reduces fuel consumption but also enhances driving comfort. When not to activate ECO mode: 1. When driving at high speeds (above 100km/h), even if ECO is turned on, the vehicle's computer will prioritize speed, causing the ECO mode to automatically deactivate. 2. When high torque output is needed, such as when climbing hills, the engine computer will prioritize ensuring sufficient power to drive the vehicle, causing the ECO mode to automatically deactivate.
