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首页> 外文期刊>Inside EPA's environmental policy alert >EPA Opens Door To Raising Gasoline Octane Rating In 'Tier III' Fuel Rule
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EPA Opens Door To Raising Gasoline Octane Rating In 'Tier III' Fuel Rule

机译：EPA开启提高“三级”燃油规则中汽油辛烷值的门

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摘要

EPA's "Tier III" fuel and vehicle emissions rule opens the door to raising gasoline's octane level - a rating of a fuel's performance - to promote better-performing cleaner fuels and engines, but automakers and biofuel advocates are criticizing the agency for proposing that the onus be on automakers to ensure the fuels are available given refiner resistance. Automakers have long sought higher octane levels in regular fuel, which currently averages an 87 rating, because they do not want to mandate that consumers purchase higher octane mid-grade at 89 or premium at 92 that are far more expensive. But they say they need even higher octane levels to ensure that technologies, such as direct fuel injection and turbocharge operate properly, boosting efficiency and reducing emissions, making it easier for automakers to comply with EPA's greenhouse gas (GHG) tailpipe rule that requires fleets to average 54.5 miles per gallon in 2025.
机译：EPA的“ Tier III”燃料和车辆排放法规为提高汽油的辛烷值（一种燃料的性能等级）打开了大门，以促进性能更好的清洁燃料和发动机，但汽车制造商和生物燃料倡导者批评该机构提出责任。要求汽车制造商确保在炼油厂抵抗的情况下可获得燃油。长期以来，汽车制造商一直在寻求将普通汽油的辛烷值提高到目前的平均水平（87分），因为他们不想强制要求消费者购买价格更高的中级辛烷值89或溢价92。但他们表示，他们需要更高的辛烷值来确保直接燃油喷射和涡轮增压等技术正常运行，提高效率并减少排放，从而使汽车制造商更容易遵守EPA要求车队采取的温室气体（GHG）排气管规定。 2025年平均每加仑54.5英里。

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