2003 Infiniti Q45 Spare Tire

Infiniti Q45, being a luxury sedan, possesses a compact temporary spare tire, a popular type designed to reduce weight and increase storage space within the vehicle. Also known as a "donut," this size of the spare tire is smaller than the vehicle's standard tires to save space and is intended only for short distances before the original tire can be repaired or replaced. It is recommended not to drive above 50 mph and no more than 70 miles on the spare tire. The exact tire size for the Infiniti Q45 can vary with the year of the vehicle manufacture, but a common size used is the P225/60R16 97H tire. It is always recommended to refer to the owner ' s manual or consult with a professional tire specialist to confirm the appropriate spare tire size and type to maximize safety and performance.

2003 Infiniti Q45 comes with 2 OEM tire size options. Select the original equipment the tire size installed on your vehicle to see all spare tires that have roughly the same tire diameter and can be used as a temporary replacement in the event of a flat tire. Remember that load carrying capacity of the spare tire must be the same or higher than the load carrying capacity of the original equipment tires in order to safely support the weight of your vehicle. Refer to vehicle owner's manual or contact Infiniti dealership to confirm the correct 2003 Infiniti Q45 spare tire size.

P225/55R17

P225/55R17 tire has a diameter of 26.8". These temporary spare tires fit the acceptable tire diameter range of 26" to 27.6".

Spare Size Spare Diameter Diameter Differential
T145/60R20from $271.36 26.9" 0.4%
T145/80D18from $257.05 27.1" 1.1%
T155/70R18from $178.60 26.6" -0.7%
T165/80R17from $166.85 27.4" 2.2%
T135/90R17from $158.19 26.6" -0.7%
T135/70R19from $147.99 26.5" -1.1%
T145/65R20from $146.43 27.4" 2.2%
T135/80R18from $125.96 26.5" -1.1%
T165/80D17from $124.93 27.4" 2.2%
T155/80D17from $97.90 26.8" 0%
T155/90D16from $92.99 27" 0.7%
T145/90D16from $88.99 26.3" -1.9%
T145/80D17from $81.99 26.1" -2.6%
T165/70R17 26.1" -2.6%
T165/70D18 27.1" 1.1%
T165/70D17 26.1" -2.6%
T155/90R16 27" 0.7%
T155/80R17 26.8" 0%
T155/70D18 26.6" -0.7%
T145/90R17 27.3" 1.9%
T145/90R16 26.3" -1.9%
T145/90D17 27.3" 1.9%
T145/80R18 27.1" 1.1%
T145/80R17 26.1" -2.6%
T135/90D17 26.6" -0.7%
T135/80D18 26.5" -1.1%
T165/70R18 27.1" 1.1%

P245/45R18

P245/45R18 tire has a diameter of 26.7". These temporary spare tires fit the acceptable tire diameter range of 25.9" to 27.5".

Spare Size Spare Diameter Diameter Differential
T145/60R20from $271.36 26.9" 0.7%
T145/80D18from $257.05 27.1" 1.5%
T155/70R18from $178.60 26.6" -0.4%
T165/80R17from $166.85 27.4" 2.6%
T135/90R17from $158.19 26.6" -0.4%
T135/70R19from $147.99 26.5" -0.7%
T145/65R20from $146.43 27.4" 2.6%
T135/80R18from $125.96 26.5" -0.7%
T165/80D17from $124.93 27.4" 2.6%
T145/70D18from $118.97 26" -2.6%
T155/80D17from $97.90 26.8" 0.4%
T155/90D16from $92.99 27" 1.1%
T145/90D16from $88.99 26.3" -1.5%
T145/80D17from $81.99 26.1" -2.2%
T155/80R17 26.8" 0.4%
T155/90R16 27" 1.1%
T165/70D17 26.1" -2.2%
T165/70D18 27.1" 1.5%
T165/70R17 26.1" -2.2%
T165/70R18 27.1" 1.5%
T185/55D18 26" -2.6%
T155/70D18 26.6" -0.4%
T145/90R17 27.3" 2.2%
T145/90R16 26.3" -1.5%
T145/90D17 27.3" 2.2%
T145/80R18 27.1" 1.5%
T145/80R17 26.1" -2.2%
T145/70R18 26" -2.6%
T135/90D17 26.6" -0.4%
T135/80D18 26.5" -0.7%
T185/55R18 26" -2.6%

More Infiniti Q45 Spare Tires

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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.