How Far Can You Drive After the Fuel Warning Light Comes On?
2 Answers
When the fuel warning light comes on, you can typically drive for about 40 to 50 kilometers. The principle behind the fuel warning light is as follows: there is a float inside the fuel tank that rises with the fuel level when the tank is full. As the fuel level decreases, the buoyancy of the float also decreases. When the fuel in the tank is nearly depleted, the buoyancy disappears, triggering the level sensor to activate the warning light. When the fuel warning light comes on, you should add fuel promptly to avoid damaging the fuel pump. The correct steps for refueling are: 1. Slow down and enter the gas station gradually, and after refueling, exit the station at a low speed; 2. Turn off the engine before refueling; 3. After filling up, close the fuel nozzle before starting the car again.
Last time I went on a self-driving trip, the low fuel light really freaked me out. Actual tests show most cars can still run about 70km. But never make this a habit - keeping the tank near empty for long periods damages the fuel pump, which relies on gasoline for cooling. Different models have varying reserves - sedans should find stations within 40km to be safe, while SUVs can stretch further. A friend pushed 30km until completely stalled, costing ¥500 for towing - the fuel savings weren't worth it. My routine is to refuel ASAP when the light comes on, using navigation to find stations within 3km for safety, while checking tire pressure and coolant.
