Surprised that the article doesn't mention between summer and winter gasoline blend (https://living.acg.aaa.com/auto/what-to-know-about-gasoline-blends-summer-v

Surprised that the article doesn't mention between summer and winter gasoline blend (https://living.acg.aaa.com/auto/what-to-know-about-gasoline-blends-summer-vs-winter/ https://living.acg.aaa.com/auto/what-to-know-about-gasoline-...) and the difference in milage.