INDIANAPOLIS, Wednesday, May 16, 2018 – Information about Indianapolis 500 presented by PennGrade Motor Oil practice Thursday, May 17 at the Indianapolis Motor Speedway. SCHEDULE (All times local): 8 a.m.-6 p.m.: Ticket and Credential Office Open 10 a.m.: Public Gates Open 11 a.m.-6 p.m.: Indianapolis 500 Practice 6 p.m.: Public Gates Close TICKETS: $15 (General Admission). Kids 15 and under…