The Pontiac G8 tire sizes are P245/40R19 or P245/45R18 as specified in our data below, organized by trim, option package, and model yearas specified in our data below, organized by trim, option package, and model year.
Some examples of Pontiac G8 tire sizes include the 2009 Pontiac G8 GXP Trim with P245/40R19 tires and the 2008 G8 Trim with P245/45R18 tires.
Tire Codes Explained (Ex. P255/55VR17)
P - Denotes the tires
intended use. (P = Passenger, LT = Light Truck, T = Temporary, ST = Special Trailer)
255 - Width of the tire tread in
millimeters.
55 - Tire Profile. The ratio
between the profile (sidewall) height and the width of the tire's
tread. It is measured in percent. A lower number is a low profile tire and a higher number has a higher
sidewall.
V - Speed
Rating. ( ie. U = 125 mph,
H = 130 mph, V = 149 mph ... etc)
R - Tire Construction. (R = Radial,
B = Bias Belt, D = Diagonal)
17 - Rim (wheel) diameter
in inches.
Check out the Tire And Rim Sizes specifications for other makes and models.
2009 Pontiac G8 Tire Sizes
The 2009 Pontiac G8 tire sizes are P245/40R19 and P245/45R18.
2009 Pontiac G8 Tire Sizes
| Trim |
Engine | Transmission | Drivetrain |
Front Tire Size | Rear Tire Size |
| GXP Sedan |
6.2L | V8 | SFI ALUMINUM (415 HP [309.4 KW] @ 5900 RPM 415LBFT OF TORQUE [560.2 N-M] @ 4600 RPM) | 6 Spd Auto With Driver Shift Control And Sport Mode | RWD |
P245/40R19 | P245/40R19 |
| GT Sedan |
6.0L | V8 | SFI ALUMINUM WITH ACTIVE FUEL MANAGEMENT | 6 Spd Auto With Driver Shift Control And Sport Mode | RWD |
P245/45R18 | P245/45R18 |
| Sedan |
3.6L | V6 | VARIABLE-VALVE TIMING DOHC SFI ALUMINUM | 5 Spd Auto With Driver Shift Control And Sport Mode | RWD |
P245/45R18 | P245/45R18 |
2008 Pontiac G8 Tire Sizes
The 2008 Pontiac G8 tire size is P245/45R18.
2008 Pontiac G8 Tire Sizes
| Trim |
Engine | Transmission | Drivetrain |
Front Tire Size | Rear Tire Size |
| GT Sedan |
6.0L | V8 | SFI ALUMINUM WITH ACTIVE FUEL MANAGEMENT | 6 Spd Auto With Driver Shift Control And Sport Mode | RWD |
P245/45R18 | P245/45R18 |
| Sedan |
3.6L | V6 | VARIABLE VALVE TIMING DOHC SFI ALUMINUM | 5 Spd Auto With Driver Shift Control And Sport Mode | RWD |
P245/45R18 | P245/45R18 |
Pontiac G8 Tire Size Data Brought To You By AutoPadre
Popular Tire And Wheel Sizes Specs