88 octane fuel has been making the rounds recently. But just how much does it matter compared to the usual 87 octane fuel ...

You may be considering switching to premium fuel in an attempt to gain performance benefits. However, here's why Consumer ...

The owner’s manual of my car — an Audi A6 — says to use 91-octane fuel. But the pump near me has 87, 89 or 94. Since then, I’ve noticed that a lot of cars require 91-octane. Is this a case of where ...

HAMPTON, Va. — If you drive a car, it seems there is no way to avoid the rising cost of filling up. Some drivers are experimenting by putting regular gas in cars designed to take a higher octane. "I ...

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 ...

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 ...

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 ...

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 ...