There are different gasoline grades based on octane. Here's how to tell which grade of fuel your car needs and why.

When filling up a MINI Cooper at your local gas station, you have the option to use either premium or regular gasoline. Although both types of fuel are acceptable, premium gas is recommended for MINI ...

When you go to a gas station, you are presented with several types of fuel, each labeled according to an octane number. While most cars can do with regular gas (generally 87 octane), it is often ...

You've probably been there. Standing in front of the pump, eyes darting between regular, mid-grade, and premium. Premium just sounds better. It's more expensive, sure, but you feel premium means ...

Imagine this: You recently bought a luxury vehicle. After the purchase, however, you discover a recommendation to use premium gasoline with your particular make and model. But do you really need to ...

If you've been wondering how Ford's EcoBoost engines make max power on 87 octane, sorry to burst your bubble, but they don't. Sure, the manual for your F-150 with the EcoBoost 3.5 reads "Your vehicle ...

The answer is yes: You can mix 87 and 91 octane gasoline without blowing your engine to hell. With that out of the way, let's discuss what mixing different octane fuels does to your engine in terms of ...

My relationship with Mazda has evolved significantly over the past decade. What I once dismissed as a collection of rebadged Ford products has transformed into something entirely different - a brand ...