Gasoline tax is a levy on the sale of gasoline or other fuels that are used to power motor vehicles. Synonyms for gasoline tax include fuel tax, gas tax, petrol tax, and energy tax. The revenue generated from gasoline tax is used to fund infrastructure and transportation projects. While the gasoline tax is an important source of revenue for governments, it is also a contentious issue as it can increase the cost of gas for consumers. Some people argue that increasing the gasoline tax can be used as an incentive for consumers to switch to more fuel-efficient vehicles or to choose alternative modes of transportation such as walking, cycling, or public transit.