  We study scaling properties of the model of fully developed turbulence for a
compressible fluid, based on the stochastic Navier-Stokes equation, by means of
the field theoretic renormalization group (RG). The scaling properties in this
approach are related to fixed points of the RG equation. Here we study a
possible existence of other scaling regimes and an opportunity of a crossover
between them. This may take place in some other space dimensions, particularly
at $d = 4$. A new regime may there arise and then by continuity moves into $d =
3$. Our calculations have shown that there really exists an additional fixed
point, that may govern scaling behaviour.
