Pontiac G8 Spare Tire Sizes

The Pontiac G8 has used a 5x120mm bolt pattern for all models from 2008 to 2009 along with a tire diameter of 26.7" tall. Using a temporary spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicles with larger brake calipers and anti-lock brakes or traction control systems. Tire diameter as well as wheel diameter clearance have been taken into account for Pontiac G8 spare tire selections. In this case, a 145/60R20 temporary spare tire is the recommendation for all applications.