Can I Just Refuel After Running Out of Gas?
3 Answers
When the fuel tank is completely empty, air can enter the fuel lines. When refueling, add enough fuel to submerge the fuel pump, and let the engine idle for a while to purge the air from the fuel lines before starting the engine. If the engine still doesn't start, simply loosen the return fuel screw with a 19mm wrench, manually pump the fuel supply pump until fuel without bubbles comes out, then tighten the return fuel screw and try starting again. If it still doesn't start, seek repairs. Here's additional information: Solution: Add alcohol. Nowadays, various types of gasoline contain alcohol components, so in desperate situations, you can mix in alcohol as a substitute for gasoline. However, this method can damage the vehicle, and the fuel system must be cleaned afterward.
In my over 30 years of driving, I've encountered several instances where the fuel tank ran completely dry. Even after refueling directly, the engine wouldn't start due to air blockage in the fuel line. In such cases, you need to bleed the air from the system or call a tow truck to take the car to a repair shop. Actually, the fuel pump relies on fuel for cooling and lubrication. Running it dry can cause overheating and damage, leading to costly and troublesome repairs. I recommend developing the habit of not driving too long after the fuel warning light comes on—safety first. If it does happen, try to stop and refuel on level ground. Before starting the engine, turn the key a few times to let the pump draw fuel, but don't force it to avoid further damage. Regularly checking fuel levels during maintenance can help prevent such issues.
Back when I just got my driver's license, I once ran the fuel tank completely dry and panicked, immediately trying my luck by refueling. The car still wouldn't start, and after calling a mechanic, I found out the fuel pump was damaged and needed replacement. Later, I learned the reason: the pump overheats and burns out when running dry because there's no fuel for cooling and lubrication. Since then, I've become more cautious, always keeping at least half a tank of fuel to avoid pushing the limits. Looking back, refueling directly carries some risks—it depends on how long the tank's been empty. A short while might be okay, but exceeding half an hour can easily cause problems. So, to all new drivers out there, regularly checking the fuel gauge is crucial—don't be as careless as I was. If something does happen, don't take matters into your own hands; it's safer to seek professional help.