Spread parameter for the O-1a, O-1b, NZ-2, NZ-15, NZ-30, NZ-31, NZ-32, NZ-33, NZ-40, NZ-41, NZ-43, NZ-44, NZ-46, NZ-50, NZ-53, NZ-62, NZ-63, and NZ-65 fuel types.
Spread parameter for the O-1a, O-1b, NZ-2, NZ-15, NZ-30, NZ-31, NZ-32, NZ-33, NZ-40, NZ-41, NZ-43, NZ-44, NZ-46, NZ-50, NZ-53, NZ-62, NZ-63, and NZ-65 fuel types.