How Much Fuel Should You Add to Your Car?
2 Answers
It is not advisable to fill the fuel tank completely; adding fuel up to 90% of the tank's capacity is sufficient. If the amount of gasoline exceeds the tank's capacity too much, it can easily enter and block the vent hole. A blocked vent hole poses a safety hazard. Additional Information: 1. Do Not Fill the Tank Completely: Under normal circumstances, you can refuel when the gasoline level is at a quarter of the tank's capacity, but do not fill it completely. Adding fuel up to 90% of the tank's capacity is enough. 2. Refueling Method: Some car owners believe that they should wait until the fuel in the tank is nearly empty before refueling to avoid sediment buildup and mixing old and new fuel. However, these practices are incorrect. The car draws fuel from the bottom of the tank, so there is no issue of sediment buildup. If the fuel level is too low, the fuel pump may be exposed for too long, shortening its lifespan and potentially causing significant damage to the car over time.
As a long-distance driver, I believe refueling should balance cost savings and convenience. Generally, it's recommended to fill the tank to about 80% to prevent overflow and system damage, as well as to avoid gasoline evaporation and waste. A half-full tank makes the car lighter and saves some fuel, but I've tried driving 300 km before needing to refuel, which means frequent trips to the gas station can be more troublesome and costly. When fuel prices fluctuate, you can fill up more when prices are low and less when they're high. Normally, keeping the tank at least half full protects the fuel pump from overheating due to dry running. Remember, fuel consumption also depends on driving habits—sudden acceleration consumes more fuel.