EZ Oil Drain ValveLogo Design Contest Logo Design Contest Contests / EZ Oil Drain Valve EZ Oil Drain Valve has selected their winning logo design. For $275 they received 57 designs from 20 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by wes-wos Return to Contest Return to Contest Withdrawn Prefers others. #1 Discussion No comments yet.