The next time you pull into a gas station, you may see a sign that says you have to pump a minimum of four gallons. What's up with that? Here's what we know.

The EPA's latest data shows which vehicles can help you spend less when you fill up.

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 ...

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 ...

Unlike regular gasoline, diesel fuel is regularly used in not just consumer vehicles, but a variety of specialized vehicles, from off-road trucks to farming equipment. It's one of the many differences ...

Sergiu is a mechanically minded car enthusiast about to finish his university degree. From attending car meets and expositions to creating automotive content, Sergiu thrives in the presence of cars.

Add Yahoo as a preferred source to see more of our stories on Google. Green pump for diesel, blue for gas – but what's the difference? Jeffrey Greenberg/Education Images/Universal Images Group via ...

According to AAA, it’s a waste of money to use premium fuel in a car that recommends regular. With sky-high gas prices, the type of gas you choose at the pump matters for both your car and your wallet ...