Costco’s premium gas, available at locations nationwide, has sparked a debate among drivers about its exact octane rating. Is it 91 or 93? And does this difference have any significant impact on their ...

Cars queue up in Hollywood for a pop-up gas station with 1985-like prices Thursday. Customers could buy up to 10 gallons of fuel for 91 cents a gallon as part of a promotional event for a reboot of ...

As gas prices increase, you may be wondering what level of premium fuel you actually need. Some car manufacturers recommend or require premium gasoline, but with the national average reaching $5 a ...