ASTM standards for avgas have remained the same and changes
require considerable public notice and comments.



"vlado" wrote in message
oups.com...
| Since 100LL has been made available, has the quality or
formulation
| changed? Watching automotive fuels at the pump, car gas
has changed
| with various additives, ethanol, etc. But what about
100LL? Has 100LL
| chemistry remained the same since its initial
introduction?
| Thx.
| VL
|