In 1990 Cogan could only get a drive for Indianapolis for Vince Granatelli Racing in the No. 11 Tuneup Masters Penske PC18-Buick V6. In the race Cogan qualified in 15th place and finished in 9th place. Cogan would later get a second race at the Marlboro 500 at Michigan International Speedway for Stoops Racing in the No. 17 Conseco Lola T9000-Cosorth DFS starting 13th and finishing 20th. Cogan would finish out the season 23rd in points.