The 1990 CART PPG Indy Car World Series season was the 12th national championship season of American open wheel racing sanctioned by CART. Al Unser Jr. won the championship driving Valvoline-sponsored Lola T90 – Chevrolet for Galles-Kraco Racing Team. Unser won 6 of 16 seasons races and took first of his two IndyCar titles.
|1990||PPG Indy Car World Series||Indianapolis 500|
|Al Unser Jr.||5||Galles-Kraco Racing|
|Lola T90/00||Chevrolet||Team Valvoline|