Is Topping Off Gas Bad for My Car?

filling up gas tank

When filling up your gas tank, make sure you fight the urge to top off. In the majority of cases, it’s a practice that leads to wasting money as well as potentially harming your car and the environment.

Paying for Gas You’re Not Getting
Gas pumps automatically click off when a car tank is full, and in many cases, when a driver tries to top off gas at this point, they end up paying for gas that is not actually flowing into the car. Instead, the fuel ends up back in the station’s tank. This is because there are systems in place that are designed to collect any excess vapors and gas from the pump, which helps protect the environment.

Harming Your Car
When you have too much fuel in the tank, there’s a chance that you could damage your car’s vapor-collection system, leading to excess vehicle emissions. In addition, gas expands when your car is running, so too much fuel may built pressure that causes your car to spring a leak.

Negative Environmental Impact
As noted above, a broken vapor recovery system can cause vehicles to produce excess emissions. This is not only harmful to the environment, but also to people’s health.

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