Is it normal for Jet A-1 to have a freezing temp of -57C? Is this really pure Jet A-1, or is it mixed with something else?
A good question - any "lights" in the fuel to reduce the melting point would indeed result in a higher liklihood of caviation in the pumps, or could result in waxes in fuel lines to being stripped then passed through once the right temperature (read 'altitude') is reached.
T.
PS Is it normal for fuel
not to be tested for water after fuelling?