A new, more expensive grade of premium-plus gasoline at Shell stations could signal a new round of competition as oil companies add new features to their fuels. The goals include longer engine life ...

(USA TODAY) A new, more expensive grade of premium-plus gasoline that goes on sale at Shell stations nationwide Monday could signal a new round of competition as oil companies add new features to ...

New gasoline promises lower wear and corrosion Replaces Shell%27s current premium gasoline A price increase is expected Lower friction and rust may improve engines%27 efficiency A new, more expensive ...

Until electric cars and hydrogen fuel cell vehicles become the norm, most of us will drive automobiles that run on fossil fuels. We know it is not good for the environment, but it is the only option ...

Automakers and oil companies are developing new engines and fuels Fuel cost is a key concern Automakers and oil companies are quietly developing a new generation of fuels and engines to run more ...

We've all seen octane ratings at the fuel pump, and based on the numbers, it's easy to think the higher number is better. From lowest to highest, the types of gasoline are regular, mid-grade, and ...