Learn when premium fuel is actually required, what the different grades mean, and how to avoid paying too much.

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 ...

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 ...

That moment of pure panic hits when you realize you’ve been pumping 87 octane into your luxury sedan for the past two minutes. Your stomach drops like you’ve just bricked your phone’s operating system ...

Caffeine and Octane, the brand behind the monthly car show held at Perimeter Mall in Dunwoody, is taking on a new large-scale project in Sandy Springs. PHOTOS: Tanks, Lamborghinis, everything in ...

Does your street-driven car ping now when it didn't use to? It may be suffering from octane creep caused by deposit buildup inside the combustion chambers. New engines on the dyno and regularly ...

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 ...