For Indianapolis, teams will be allowed to change their engines prior to qualifying and data will be permitted at practice. A single gear will be used, but teams will bring four different gears. NASCAR will determine which gear is needed after practice. Teams will start on a 3.70 gear.
The Indianapolis rule package differs from the first track-specific rule package used this season at Kentucky which created lower downforce. The modifications helped produce a track-record 22 green-flag passes for the lead and a total of 2,665 green-flag passes overall. NASCAR