All reputable authorities agree, that running on ethanol alcohol above 10% will cause engine damage and/or performance issues with gas-powered engines, and it is always unsafe to run on contaminated fuel.

Prevention is your best weapon.

91+ Octane E0 Unleaded

89+ Octane E0 Unleaded

87+ Octane E0 Unleaded

Zero Percent Ethanol by Volume

Clear Gas is Compliant in the following areas:

FAA Advisory Circular 23.1521-1B 'STC'

ASTM D-439 / D-4814 Specification

FAA FAR PART 139 Section 321

DOT 406x