The ornamental design for an automotiveradiator, as shown and described.
FIG. 1 is a front elevation view of an automotive radiator showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a perspective view thereof.
The dash-dot-dash lines in the drawings illustrate a boundary line, the portions of the automotive radiator within the boundary line and the boundary line form no part of the claimed design.