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

What's meant by "premium" isn't the same from gas station to gas station or even from state to state. So what will you find ...

Malfunctioning valve mixes premium gas with lower grade Problem fixed on Friday Affected gasoline likely sold only in New Brunswick CALGARY, Alberta, Aug 16 (Reuters) - Irving Oil Ltd, the private ...

Are you overpaying for premium gas or getting suboptimal performance out of your car because you're feeding it the wrong fuel? Gasoline is categorized by octane ratings at gas stations. Most drivers ...