The 2008 Peak Antifreeze & Motor Oil Indy 300 was Round 18 of the 2008 IndyCar Series. The event was held at Chicagoland Speedway in Illinois, United States on 7 September 2008. Ryan Briscoe started on pole position and Helio Castroneves was the race winner.
PEAK ANTIFREEZE & MOTOR OIL INDY 300 Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Started | Laps | Total Time | Laps Led | Status | Points | Avg. Speed | Pit Stops |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | Helio Castroneves | Dallara | Honda | Firestone | 28 | 200 | - | 80 | Running | 53 | 150.648 | - |
| 2 | 9 | Scott Dixon | Dallara | Honda | Firestone | 2 | 200 | - | 14 | Running | 40 | - | - |
| 3 | 6 | Ryan Briscoe | Dallara | Honda | Firestone | 1 | 200 | - | 41 | Running | 35 | - | - |
| 4 | 11 | Tony Kanaan | Dallara | Honda | Firestone | 4 | 200 | - | 47 | Running | 32 | - | - |
| 5 | 8 | Will Power | Dallara | Honda | Firestone | 10 | 200 | - | 0 | Running | 30 | - | - |
| 6 | 10 | Dan Wheldon | Dallara | Honda | Firestone | 6 | 200 | - | 13 | Running | 28 | - | - |
| 7 | 14 | Darren Manning | Dallara | Honda | Firestone | 23 | 200 | - | 0 | Running | 26 | - | - |
| 8 | 26 | Marco Andretti | Dallara | Honda | Firestone | 5 | 200 | - | 0 | Running | 24 | - | - |
| 9 | 17 | Ryan Hunter-Reay | Dallara | Honda | Firestone | 16 | 200 | - | 0 | Running | 22 | - | - |
| 10 | 7 | Danica Patrick | Dallara | Honda | Firestone | 3 | 200 | - | 0 | Running | 20 | - | - |
| 11 | 2 | Justin Wilson | Dallara | Honda | Firestone | 21 | 200 | - | 0 | Running | 19 | - | - |
| 12 | 36 | Alex Tagliani | Dallara | Honda | Firestone | 19 | 200 | - | 0 | Running | 18 | - | - |
| 13 | 2 | A.J. Foyt IV | Dallara | Honda | Firestone | 15 | 199 | - | 0 | Running | 17 | - | - |
| 14 | 23 | Milka Duno | Dallara | Honda | Firestone | 20 | 199 | - | 5 | Running | 16 | - | - |
| 15 | 41 | Franck Perera | Dallara | Honda | Firestone | 24 | 198 | - | 0 | Running | 15 | - | - |
| 16 | 25 | Marty Roth | Dallara | Honda | Firestone | 9 | 197 | - | 0 | Running | 14 | - | - |
| 17 | 5 | Oriol Servia | Dallara | Honda | Firestone | 12 | 196 | - | 0 | Running | 13 | - | - |
| 18 | 34 | Jaime Camara | Dallara | Honda | Firestone | 17 | 187 | - | 0 | Running | 12 | - | - |
| 19 | 6 | Graham Rahal | Dallara | Honda | Firestone | 14 | 186 | - | 0 | Contact | 12 | - | - |
| 20 | 18 | Bruno Junqueira | Dallara | Honda | Firestone | 25 | 184 | - | 0 | Running | 12 | - | - |
| 21 | 19 | Mario Moraes | Dallara | Honda | Firestone | 27 | 181 | - | 0 | Contact | 12 | - | - |
| 22 | 27 | Hideki Mutoh | Dallara | Honda | Firestone | 11 | 177 | - | 0 | Running | 12 | - | - |
| 23 | 33 | E.J. Viso | Dallara | Honda | Firestone | 26 | 136 | - | 0 | Contact | 12 | - | - |
| 24 | 67 | Sarah Fisher | Dallara | Honda | Firestone | 18 | 116 | - | 0 | Contact | 12 | - | - |
| 25 | 15 | Buddy Rice | Dallara | Honda | Firestone | 22 | 110 | - | 0 | Contact | 10 | - | - |
| 26 | 12 | Tomas Scheckter | Dallara | Honda | Firestone | 7 | 87 | - | 0 | Mechanical | 10 | - | - |
| 27 | 4 | Vitor Meira | Dallara | Honda | Firestone | 8 | 74 | - | 0 | Contact | 10 | - | - |
| 28 | 20 | Ed Carpenter | Dallara | Honda | Firestone | 13 | 36 | - | 0 | Contact | 10 | - | - |