The ornamental design for an oilairfreshenermountingbracket, as shown and described.
FIG. 1 is a front elevational view of an oil air freshener mounting bracket;
FIG. 2 is a right-side elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left-side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view thereof; and,
FIG. 8 is a rear perspective view thereof.
The broken lines showing of the plurality of screws and the plurality of butterfly screws in FIGS. 1-8 are included for the purpose of showing environmental structure and form no part of the claimed design.