Friday morning during opening day inspection at Michigan International Speedway, NASCAR officials determined that the oil pans from the three Joe Gibbs Racing cars - the No. 11, No. 18 and No. 20 - had not been submitted for prior approval by NASCAR. NASCAR instructed the three teams to change out these oil pans. If the teams did not change them out prior to today's first practice session, their practice times would not be allowed.
NASCAR will discuss early next week if there will be any additional penalties assessed to these three teams.