What is Top Tier Gas?
Is “Premium” the Same as Top Tier?
Is Top Tier Gas Better for Engines?
Do Drivers Prefer Top Tier Fuel?
AAA’s Advice to Drivers
Information taken from “AAA: Not All Gasoline Created Equal,” July 7, 2016, American Automobile Association; and “Fact Sheet: Fuel Quality,” December 2015, AAA Automotive Engineering.