[Spooky23]

Yeah, they do. Big V8s usually require premium gas.

Premium gas costs more. Race cars need race gas — that costs even more.

[public_defender]

Does the gas station check what car is pulling up, or do you choose based on what you think works best for the engine?

[Spooky23]

Depends on the business model. A New Jersey gas station will deny you the freedom of putting diesel in your Civic.