If you own multiple classic cars that require special care to maintain, you want to use gasoline that keeps your vehicles in good condition. But if the gasoline you currently use causes problems for your cars, use ethanol-free gasoline instead. Ethanol-free gasoline may be better for your cars' engines and other parts. Learn more about ethanol-free gasoline and how to find it for your classic cars below. Why Is Ethanol Free Gasoline Better for Classic Cars?