Top Tier gasoline contains more effective detergents than federally required, which helps clean fuel injectors and reduce harmful carbon deposits inside the engine.

In the US, the color of gasoline at the pump doesn't necessarily tell you its octane rating. While some stations might use color-coding (usually yellow for premium), it's not a universal standard.

You may be wondering why a certain fuel would be dyed a particular color and may think it would ... regular, mid-grade, ...

MOSCOW, July 31. /TASS/. Commodity exchange prices of the Premium 95-octane gasoline blend surged by 16% as of the end of July and set several records over the month, according to data of the St ...

American consumers spend money on premium gas for engines that don't require it. Only 16% of cars on the road need premium fuel. Follow BI Video: On Twitter More from Personal Finance A triangle ...