My Subaru WRX calls for 93-octane gasoline, but as a writer, my wallet doesn’t always agree. So once, I decided to fill it up with 87-octane instead. The result: I could actually hear the poor engine ...

often sits beside regular 91 or 95-octane options, usually at a noticeably higher price. Many drivers assume that the most expensive fuel must be the best choice for their car, promising better ...

We’ve been reporting for years that there’s zero advantage to using a higher-octane gasoline than your car requires, and that you can also get away with regular gas if your car merely recommends ...

Unless you’ve been living in a cave—or drive an electric car—you know that gas prices have shot up to unprecedented highs, due to multiple factors that have been further exacerbated by the Russian war ...

Are you overpaying for premium gas or getting suboptimal performance out of your car because you're feeding it the wrong fuel? Gasoline is categorized by octane ratings at gas stations. Most drivers ...

With national gas prices still above $4 a gallon, many drivers are looking for ways to save on fuel wherever they can. Some have wondered whether one way might be to try splurging on “premium” gas, in ...

Using premium gasoline with a higher octane rating can improve how certain designs of motor vehicle engines perform. But does that mean you should consider using it with other motors at your house, ...

GREENSBORO, N.C. — Sheesh. Gas prices are crazy. What if you've been paying for premium gas? Should you try and skimp and go down to regular or plus? You could save 30 to 70-cents a gallon! "Some ...

Here’s some bad news for drivers of luxury cars and large sport-utility vehicles who are pumping the top grade of gasoline: the premium they pay over regular fuel is getting pricier. U.S. and European ...

Octane fights knock; it doesn’t add power to cars designed for regular. Follow the fuel-door label and pick regular pumps—the detergent is the real upgrade Premium Gas Isn’t Better. It’s Octane vs.

With the price of regular unleaded gasoline still in the $4-a-gallon range, the comparative price of premium is kind of a bargain at many stations. Really. When the price of regular surged this spring ...