With the rest of the world having long-since moved away from leaded fuels, aviation gasoline, or "avgas" for short, seemingly exists as a final holdover from a bygone era. The most ubiquitous avgas ...

Leaded fuel is considered one of the greatest environmental failures in modern human history. Adding tetraethyl lead to gasoline reduced knock in internal combustion engines, which was widely ...

In its various forms, lead has been used in many everyday products for millennia. The Romans even added it to wine as a sweetener. Its most widespread use, however, was its addition to petrol. And it ...

Since the start, the makers of gasoline have searched for a fuel that reduces knock as much as possible. That's what led to the use of leaded gasoline in the United States until the Clean Air Act was ...