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out how LogoTournament works How LogoTournament works Contest Entries by bestone Return to Contest Return to Contest Withdrawn New #10 Withdrawn Prefers others. #9 Discussion No comments yet.