Roughly 170,000 piston-engine aircraft are used across the country. Nearly all burn a grade of aviation gasoline that contains lead. (Nicolas Economou/NurPhoto via Getty Images) Reading Time: 7 ...

Lead was phased out of gasoline sold for cars and trucks decades ago. But that brain-damaging fuel additive used to prevent engine knock is still being spewed into the air across the nation — ...

Between the early 1920s and 1980s, much of the gasoline used in the U.S. was leaded. Though usage peaked in the 1970s, it wasn’t banned as a passenger car fuel additive in the U.S. until 1996, and ...

Uncle Sam has decided to "get the lead out" of gas. Face it: The lead is coming out. For better or for worse, our EPA who art in Washington has already cut the allowable gasoline lead concentration ...

Engine knock, wherein fuel ignites unevenly along the cylinder wall resulting in damaging percussive shockwaves, is an issue that automakers have struggled to mitigate since the days of the Model T.