IndyCar announces engine change update
IZOD IndyCar Series officials released the following chart updating the engine status of teams participating in the Indianapolis 500.
| CAR | ENTRANT | DRIVER | ENGINE | STATUS |
| No. 1 | Andretti Autosport | Ryan Hunter-Reay | On Engine #2 | – |
| No. 2 | Team Penske | AJ Allmendinger | On Engine #2 | – |
| No. 3 | Team Penske | Helio Castroneves | On Engine #2 | – |
| No. 4 | Panther Racing | JR Hildebrand | On Engine #2 | – |
| No. 5 | Team Venezuela-Andretti Autosport-HVM | E.J. Viso | On Engine #2 | – |
| No. 6 | Dragon Racing | Sebastian Saavedra | On Engine #2 | – |
| No. 7 | Dragon Racing | Sebastien Bourdais | On Engine #2 | – |
| No. 8 | Chip Ganassi Racing | Ryan Briscoe | On Engine #2 | Approved — Fitted Indy 500 race engine (Rule 15.5.4) |
| No. 9 | Target Chip Ganassi Racing | Scott Dixon | On Engine #2 | |
| No. 10 | Target Chip Ganassi Racing | Dario Franchitti | On Engine #2 | Unapproved – Penalty at Detroit 1 (Rule 15.3.1) |
| No. 11 | KV Racing Technology | Tony Kanaan | On Engine #2 | |
| No. 12 | Team Penske | Will Power | On Engine #3 | E2 – Unapproved – No penalty (Rule 15.6.1.2) E3 – Approved — Fitted Indy 500 race engine (Rule 15.5.4) |
| No. 14 | A.J. Foyt Enterprises | Takuma Sato | On Engine #2 | |
| No. 15 | Rahal Letterman Lanigan Racing | Graham Rahal | On Engine #3 | Unapproved -Penalty at Detroit 1 (Rule 15.3.1) |
| No. 16 | Rahal Letterman Lanigan Racing | James Jakes | On Engine #2 | |
| No. 17 | Rahal Letterman Lanigan Racing | Michel Jourdain | On Engine #2 | Unapproved – No penalty (Rule 15.6.1.2) |
| No. 18 | Dale Coyne Racing | Ana Beatriz | On Engine #3 | Unapproved – No penalty (In race failure) (Rule 15.5.7) |
| No. 19 | Dale Coyne Racing | Justin Wilson | On Engine #2 | – |
| No. 20 | Ed Carpenter Racing | Ed Carpenter | On Engine #2 | – |
| No. 21 | Sarah Fisher Hartman Racing | Josef Newgarden | On Engine #3 | Unapproved -Penalty at Detroit 1 (Rule 15.5.1) |
| No. 22 | Panther/Dreyer & Reinbold Racing | Oriol Servia | On Engine #2 | |
| No. 25 | Andretti Autosport | Marco Andretti | On Engine #3 | Approved — Fitted Indy 500 race engine (Rule 15.5.4) |
| No. 26 | Andretti Autosport | Carlos Munoz | On Engine #2 | Unapproved – No penalty (Rule 15.6.1.2) |
| No. 27 | Andretti Autosport | James Hinchcliffe | On Engine #2 | – |
| No. 41 | A.J. Foyt Racing | Conor Daly | On Engine #2 | Unapproved – No penalty (Rule 15.6.1.2) |
| No. 55 | Schmidt Peterson Motorsports | Tristan Vautier | On Engine #2 | Unapproved – Penalty at Long Beach (Rule 15.3.1) |
| No. 60 | Panther Racing | Townsend Bell | On Engine #1 | – |
| No. 63 | Dale Coyne Racing | Pippa Mann | On Engine #1 | – |
| No. 77 | Schmidt Hamilton Motorsports | Simon Pagenaud | On Engine #2 | – |
| No. 78 | KV Racing Technology | Simona De Silvestro | On Engine #2 | – |
| No. 81 | Schmidt Peterson Motorsports | Katherine Legge | On Engine #1 | – |
| No. 83 | Novo Nordisk Chip Ganassi Racing | Charlie Kimball | On Engine #2 | Unapproved – Penalty at Detroit 1 (Rule 15.3.1) |
| No. 91 | Lazier Partners Racing | Buddy Lazier | On Engine #1 | – |
| No. 98 | Barracuda Racing | Alex Tagliani | On Engine #3 | Approved — Fitted Indy 500 race engine (Rule 15.5.4) |