泄漏燃料是车辆遇到的危险和浪费问题。Manufacturers know this, and to combat the problem they have implemented a number of simple ways to prevent fuel from leaking out of the fuel system:
O-rings：由橡胶或类似柔性材料制成的小环。它们在防止液体泄漏出线，软管和配件方面非常有用。在燃油系统中，O形圈用于防止燃料在喷油器周围泄漏。
Gaskets：橡胶密封件完全符合其所应用的部分的轮廓。例如，燃油箱和燃油泵之间的垫片可防止泄漏，因为它是为了密封泵安装的油箱中的孔的外围。
硬气管：比橡胶软管更耐用，许多汽车都使用了硬燃油管线，因为它们持续了很长一段时间，并且可以承受滥用行动汽车的滥用。燃油系统也使用橡胶软管，但它们位于可以定期检查的可访问区域。
Despite all of this, gas leaks do happen. Gas is dangerous as a liquid and it produces dangerous fumes as well. Aleak must be fixedas soon as it is noticed.
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