Does your car need regular fuel or premium? Gas or diesel? What happens if you put the wrong fuel into your car? The results vary wildly from case to case, but you need to be careful about what kind ...

Premium doesn’t add power in cars built for regular. Follow the label and prefer regular gas for cleaner engines and steadier performance ...

It's common knowledge that buying an ex-rental car can be a path to scoring a great deal on your next vehicle. That said, consider that rental cars frequently have more blemishes than normal, such as ...

When you go to a gas station, you are presented with several types of fuel, each labeled according to an octane number. While most cars can do with regular gas (generally 87 octane), it is often ...

According to AAA, as of July 14, 2025, the average price for a gallon of premium gas, or 91 octane, in California is $4.93. Across the country, that number comes down to $3.98, and drops as low as ...