Driving with low fuel in your car can lead to several potential issues, including: 1. **Fuel Pump Damage**: The fuel pump relies on gasoline for lubrication and cooling. Running low on fuel can cause the pump to overheat and wear out prematurely, leading to costly repairs. 2. **Sediment and Debris**: Over time, sediment can accumulate at the bottom of the fuel tank. When you drive on low fuel, the fuel pump may draw this debris into the engine, which can clog fuel filters and injectors, leading to performance issues. 3. **Increased Risk of Running Out of Gas**: Driving on a low fuel level increases the risk of running out of gas, which can leave you stranded and require roadside assistance. 4. **Fuel Efficiency**: When the fuel level is low, the fuel pump may work harder to draw fuel, which can negatively impact fuel efficiency and performance. 5. **Potential for Engine Misfire**: Low fuel levels can lead to inconsistent fuel delivery, which may cause the engine to misfire or run poorly. 6. **Inconvenience**: Running out of fuel can be inconvenient and time-consuming, as you may need to find a gas station or wait for help. 7. **Safety Concerns**: If you run out of fuel in a dangerous location, such as on a busy highway or in an isolated area, it can pose safety risks to you and your passengers. To avoid these issues, it's generally a good practice to refuel when your tank is about a quarter full. This helps ensure the longevity of your vehicle and reduces the risk of unexpected problems.