Unless you drive a car that says “Premium Fuel Only,” you don’t need premium gas!
Even the new Lexus ES300 is designed for standard-grade gas (87 octane).
“But Ramit,” you might say, “I don’t believe you. I get better gas mileasge/less knocking/it’s just better…”
The truth is, unless you’re driving a high-end luxury or sports car, you just don’t need premium gas. Cars are designed to work perfectly well with standard gasoline. In fact, you can end up wasting over $100/year when you buy it unnecessarily.
Note: You do get better gas mileage with higher-octane gas–but almost never enough to justify the extra costs. Stick with 87 and save the rest.