  This note establishes properties of a model of dissipative fluid dynamics as
a symmetric hyperbolic system by which Ruggeri once triggered the development
of Rational Extended Thermodynamics. These properties, i.e., (1) convergence of
solutions to those of the Navier-Stokes-Fourier equations and (2) nonlinear
asymptotic stability of homogeneous reference solutions, also hold in the
analogous situation for barotropic fluids.
