With fuel prices skyrocketing, you may be wondering if it’s smart to fill up wherever the price is lowest, rather than sticking with your preferred brand. That might mean straying from a “Top Tier” ...

When it’s time to fill up your car or truck’s tank, gas is gas, right? Or is some fuel better than others? The answer is that not all fuels are created equally, and that most cars are designed to use ...

Tulsa-based QuikTrip Corp., a privately owned gasoline and convenience store retailer, announced Thursday that it is offering a new class of gasoline with the "top tier detergent" rating. The rating, ...