Cryogenic oxygen and kerosene are routinely used together as standard liquid rocket propellants (such as LOX and RP-1/kerosene), directly refuting the claim that they cannot be stored or used together due to temperature incompatibilities.
The claim states that cryogenic oxygen and kerosene cannot be stored together due to extreme temperature incompatibilities. However, multiple retrieved studies discuss liquid rocket engines that successfully combine liquid oxygen (a cryogenic oxidizer) and kerosene (such as T-1 and T-6 types) as standard bipropellant systems, showing that they are widely utilized together in aerospace engineering. Therefore, the claim is refuted.