Aside from the price, have you ever driven into the petrol station and wondered ...

DEAR CAR TALK: The owner's manual of my car – an Audi A6 – says to use 91-octane fuel. But the pump near me has 87, 89 or 94. Since then, I've noticed that a lot of cars require 91-octane. Is this a ...

DENVER (KDVR) — Gas pumps in some Western states look a little different than the rest of the country. Most states have the option of choosing octane ratings of 87 (regular), 88–90 (midgrade) and ...

At gas stations around the world, premium 98-octane fuel often sits beside regular 91 or 95-octane options, usually at a ...