octane improvement

例句：

1. 1.The octane improvement in the fuel has made it more efficient.
   燃料中的辛烷值提高使得它更加高效。
2. 2.The car's performance was greatly improved with the new engine upgrade.
   新车引擎升级后性能大幅提升。
3. 3. The manufacturer claims that their product has a significant octane improvement over the competition.
   制造商声称他们的产品在辛烷值方面比竞争对手有显著提升。