Toyota recommends 87 octane for the 2025 Prius, but one owner hit 61.1 MPG using 91 premium. We analyze Jason Black’s ...

Discover the difference between 87 vs 88 octane gas. We explain how E15 fuel works, its higher ethanol content, and if it is ...

Pulling up to a gas pump means making the ultimate decision between regular or premium gas. Does premium gas make a ...

With premium gasoline prices in parts of Michigan pushing toward $6 a gallon, drivers are facing a familiar question: Do I ...

Fuel comes in different grades based on octane level at gas stations. Only some performance engines require Premium fuel for the best power output, fuel efficiency, and engine function. Are you ...

Nathaniel is an experienced automotive writer with more than 10 years of automotive writing under his belt. From model reviews to industry politics to new innovations and development, he covers a wide ...

Should you use unleaded 88 octane gas (also known as E15), which contains 15 percent ethanol, instead of standard 87 octane ...

Viewer-submitted questions for The Car Doctor: Q: My wife showed me an old article you wrote that stated you should not warm your vehicle in the winter. Why is this the case and will it do any harm to ...

The Ford Mustang and Dodge Charger have been rivals since the 1960s, but modern versions take distinct approaches to the ...