Mazda, for example, advertises that its Skyactiv-G 2.5 T turbo engine, found in the Mazda3 and CX-30, can run on any octane; it will get 227 horsepower and 310 lb-ft of torque on 87 octane, but if ...

The higher the number, the more stable the gas is. Regular gas has an octane rating of 87 and premium has 91. There’s a midgrade, which usually combines regular and premium, that has a rating of 89.

Typically, regular fuel has an octane rating of 87. Midgrade, a mix of regular fuel and premium fuel, has a rating of 89 or 90 while premium is somewhere between 91 and 94, according to the U.S ...

Why This Myth May Be Harmful Putting high-octane gas in a car or motorcycle that doesn't need it won't hurt the engine, per se. The fuel will still function the same way regular fuel would without ...