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Nominal size of tires Pontiac G8 and tolerances

Information updated on Jun. 12, 2022, 11:23

G8 models were produced by Pontiac from 2008 to 2009. There were 3 modifications of this car in total:

The manufacturer Pontiac installed tires on the G8 model with a width of 245 to 255 millimeters. You can pick up 10 tire options for the G8 - 5 are factory and 5 acceptable.

Pontiac G8: factory tire sizes and tolerances

The table below shows all the parameters of tires for Pontiac G8, which were produced in 2008-2009.

Legend of the table (width, profile and diameter tires Pontiac G8):

  • The first parameter is the tire width in millimeters.
  • The second value is the profile, this is the height of the tire as a percentage of its width.
  • Radius - corresponding to the diameter of the disc on which the tire will be installed.

Quick jump to the required parameters of Pontiac G8 tires:

By year of production:
By modification:

From this table you will find out which tires can be installed on the Pontiac G8.

Modification Production year Width / profile / radius Type of install
3.6i GM Zeta 2008 245/45 R18 Factory
3.6i GM Zeta 2008 245/40 R19 Allowable
6.0i GT GM Zeta 2008 245/45 R18 Factory
6.0i GT GM Zeta 2008 245/40 R19 Allowable
3.6i GM Zeta 2009 245/45 R18 Factory
3.6i GM Zeta 2009 245/40 R19 Allowable
6.0i GT GM Zeta 2009 245/45 R18 Factory
6.0i GT GM Zeta 2009 245/40 R19 Allowable
6.2i GXP GM Zeta 2009 245/40 R19 Factory
6.2i GXP GM Zeta 2009 255/35 R20 Allowable

Tire sizes for other Pontiac models