Gas Class Breakdown
What Are the Three Classes of Gasoline and Their Differences?

Learn about the three classes of gasoline—Regular, Mid-Grade, and Premium—and which type is best for your vehicle based on octane ratings.

Gasoline Types 101
What Are the 3 Gasoline Types and Their Octane Ratings?

Learn about the 3 gasoline types—regular, mid-grade, and premium—and their octane ratings for better vehicle performance.