The 2008 Mazda 3 tire size depends on trim: the Mazdaspeed, 2.3 L takes 215/45R18 93Y XL; the Mazdaspeed, 2.3 M takes 215/45R18 93Y XL; the s Grand Touring, 4D Sedan, 2.3 3, Automatic takes P205/55R16 89H; the i Sport, 2.0 G, Automatic takes P195/65R15 89H; the s Grand Touring, 4D Hatchback, 2.3 3, Automatic takes P205/50R17 88V; the i Sport, 2.0 F, Automatic takes P195/65R15 89H; the s Grand Touring, 4D Hatchback, 2.3 3, Standard takes P205/50R17 88V; the s Grand Touring, 4D Hatchback, 2.3 4, Automatic takes P205/50R17 88V; the i Sport, 2.0 G, Standard takes P195/65R15 89H; the i Touring, 2.0 G, Automatic takes P195/65R15 89H; the i Touring, 2.0 G, Standard takes P195/65R15 89H; the s Grand Touring, 4D Hatchback, 2.3 4, Standard takes P205/50R17 88V; the i Touring, 2.0 F, Automatic takes P195/65R15 89H; the i Sport, 2.0 F, Standard takes P195/65R15 89H; the i Touring, 2.0 F, Standard takes P195/65R15 89H; the s Grand Touring, 4D Sedan, 2.3 3, Standard takes P205/55R16 89H; the s Grand Touring, 4D Sedan, 2.3 4, Standard takes P205/55R16 89H; the s Sport, 4D Hatchback, 2.3 3, Automatic takes P205/50R17 88V; the s Grand Touring, 4D Sedan, 2.3 4, Automatic takes P205/55R16 89H; the s Sport, 4D Hatchback, 2.3 4, Automatic takes P205/50R17 88V; the s Sport, 4D Hatchback, 2.3 4, Standard takes P205/50R17 88V; the s Sport, 4D Hatchback, 2.3 3, Standard takes P205/50R17 88V; the s Sport, 4D Sedan, 2.3 3, Automatic takes P205/55R16 89H; the s Sport, 4D Sedan, 2.3 3, Standard takes P205/55R16 89H; the s Sport, 4D Sedan, 2.3 4, Automatic takes P205/55R16 89H; the s Sport, 4D Sedan, 2.3 4, Standard takes P205/55R16 89H; the s Touring, 4D Hatchback, 2.3 3, Automatic takes P205/50R17 88V; the s Touring, 4D Hatchback, 2.3 3, Standard takes P205/50R17 88V; the s Touring, 4D Hatchback, 2.3 4, Automatic takes P205/50R17 88V; the s Touring, 4D Hatchback, 2.3 4, Standard takes P205/50R17 88V; the s Touring, 4D Sedan, 2.3 3, Automatic takes P205/55R16 89H; the s Touring, 4D Sedan, 2.3 3, Standard takes P205/55R16 89H; the s Touring, 4D Sedan, 2.3 4, Automatic takes P205/55R16 89H; the s Touring, 4D Sedan, 2.3 4, Standard takes P205/55R16 89H, per the factory service manual.
Factory-Spec Tire Size
Varies by trim
Mazdaspeed, 2.3 L: 215/45R18 93Y XL
Mazdaspeed, 2.3 M: 215/45R18 93Y XL
s Grand Touring, 4D Sedan, 2.3 3, Automatic: P205/55R16 89H
i Sport, 2.0 G, Automatic: P195/65R15 89H
s Grand Touring, 4D Hatchback, 2.3 3, Automatic: P205/50R17 88V
i Sport, 2.0 F, Automatic: P195/65R15 89H
s Grand Touring, 4D Hatchback, 2.3 3, Standard: P205/50R17 88V
s Grand Touring, 4D Hatchback, 2.3 4, Automatic: P205/50R17 88V
i Sport, 2.0 G, Standard: P195/65R15 89H
i Touring, 2.0 G, Automatic: P195/65R15 89H
i Touring, 2.0 G, Standard: P195/65R15 89H
s Grand Touring, 4D Hatchback, 2.3 4, Standard: P205/50R17 88V
i Touring, 2.0 F, Automatic: P195/65R15 89H
i Sport, 2.0 F, Standard: P195/65R15 89H
i Touring, 2.0 F, Standard: P195/65R15 89H
s Grand Touring, 4D Sedan, 2.3 3, Standard: P205/55R16 89H
s Grand Touring, 4D Sedan, 2.3 4, Standard: P205/55R16 89H
s Sport, 4D Hatchback, 2.3 3, Automatic: P205/50R17 88V
s Grand Touring, 4D Sedan, 2.3 4, Automatic: P205/55R16 89H
s Sport, 4D Hatchback, 2.3 4, Automatic: P205/50R17 88V
s Sport, 4D Hatchback, 2.3 4, Standard: P205/50R17 88V
s Sport, 4D Hatchback, 2.3 3, Standard: P205/50R17 88V
s Sport, 4D Sedan, 2.3 3, Automatic: P205/55R16 89H
s Sport, 4D Sedan, 2.3 3, Standard: P205/55R16 89H
s Sport, 4D Sedan, 2.3 4, Automatic: P205/55R16 89H
s Sport, 4D Sedan, 2.3 4, Standard: P205/55R16 89H
s Touring, 4D Hatchback, 2.3 3, Automatic: P205/50R17 88V
s Touring, 4D Hatchback, 2.3 3, Standard: P205/50R17 88V
s Touring, 4D Hatchback, 2.3 4, Automatic: P205/50R17 88V
s Touring, 4D Hatchback, 2.3 4, Standard: P205/50R17 88V
s Touring, 4D Sedan, 2.3 3, Automatic: P205/55R16 89H
s Touring, 4D Sedan, 2.3 3, Standard: P205/55R16 89H
s Touring, 4D Sedan, 2.3 4, Automatic: P205/55R16 89H
s Touring, 4D Sedan, 2.3 4, Standard: P205/55R16 89H