AVGAS (Aviation Gas)

AVGAS is the most commonly used fuel for piston engines. Some gas turbines can run on AVGAS but it is not the fuel of choice and is normally only used in the case when kerosine or jet fuel is not available. AVGAS contains a highly toxic lead additive in order to achieve high octane ratings and is colored according to the grade. For example, 100LL (low lead) AVGAS is dyed blue.