WASHINGTON, Nov. 26 (TNSFR) -- Valvoline Inc., Lexington, Kentucky, and Greenbriar Equity Fund V. L.P., Greenwich, Connecticut, have submitted a proposed consent agreement to the Federal Trade Commission to settle allegations that Valvoline's planned acquisition of quick lube outlets from Greenbriar would violate federal law prohibiting unfair methods of competition. The agreement is designed to resolve concerns over the acquisition, which FTC alleges would substantially lessen competition for  more PR