Pontiac G8 Spare Tire
The Pontiac G8 is a powerful sedan with a roomy interior, but it does not come with a factory spare tire, having in its place an inflator kit for temporary fixes. However, for drivers who prefer to have a spare tire for emergencies, there are several options available in the market. The exact specifications for a spare tire for a Pontiac G8 depend on the model and the size of the original tires, but typically, a compact temporary spare tire (also known as a donut), size T155/80D18 is suitable. It's important to remember that donut spares are for temporary use only and should be replaced with a full-size tire as soon as possible. Always refer to your vehicle owner ' s manual for specific information about spare tire size and type compatibility.
Pontiac G8 models manufactured from 2008 to 2009 have tires with overall diameter of 26.7", allowing the use of a temporary spare tire with a near same diameter as the OEM tire. Tire diameter and wheel diameter clearance have been taken into account for the specific Pontiac G8 years and trims.
Listed below are compact spare tire sizes that can fit some Pontiac G8 vehicles based on acceptable tire diameter range of 25.9" to 27.5". Some G8 models may require the use of a traditional full-size tire as a spare. To ensure safe temporary mobility in case of a road emergency, always refer to the vehicle owner's manual for the correct Pontiac G8 spare tire size designated by vehicle's manufacturer.
| Spare Size | Spare Diameter |
|---|---|
| T145/60R20from $271.36 | 26.9" |
| T145/80D18from $257.05 | 27.1" |
| T155/70R18from $178.60 | 26.6" |
| T165/80R17from $166.85 | 27.4" |
| T135/90R17from $158.19 | 26.6" |
| T135/70R19from $147.99 | 26.5" |
| T145/65R20from $146.43 | 27.4" |
| T135/80R18from $125.96 | 26.5" |
| T165/80D17from $124.93 | 27.4" |
| T145/70D18from $118.97 | 26" |
| T155/80D17from $97.90 | 26.8" |
| T155/90D16from $92.99 | 27" |
| T145/90D16from $88.99 | 26.3" |
| T145/80D17from $81.99 | 26.1" |
| T155/80R17 | 26.8" |
| T155/90R16 | 27" |
| T165/70D17 | 26.1" |
| T165/70D18 | 27.1" |
| T165/70R17 | 26.1" |
| T165/70R18 | 27.1" |
| T185/55D18 | 26" |
| T155/70D18 | 26.6" |
| T145/90R17 | 27.3" |
| T145/90R16 | 26.3" |
| T145/90D17 | 27.3" |
| T145/80R18 | 27.1" |
| T145/80R17 | 26.1" |
| T145/70R18 | 26" |
| T135/90D17 | 26.6" |
| T135/80D18 | 26.5" |
| T185/55R18 | 26" |
Spare Tire for Pontiac G8
Discover spare tire solutions for your Pontiac G8 based on model year. Generally, spare tire size has to be within 3% of the overall diameter of the original equipment tire size. Pontiac G8 tire size can vary depending on the year and trim. Make sure to check the load index and load capacity of the spare tire to ensure that it is capable to safely support your vehicle's weight.
| Vehicle | Recommended Spare |
|---|---|
| 2009 Pontiac G8 | 31 compact spare tires fit the OEM tire diameter range of 25.9" to 27.5" |
| 2008 Pontiac G8 | 31 compact spare tires fit the OEM tire diameter range of 25.9" to 27.5" |
All listed guides, data and/or calculations are for informational purposes only. Spare-Tires.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for the correct spare tire size configuration.