What size tires fit a 2018 Infiniti Q70?

The 2018 Infiniti Q70 uses P245/50R18 99V as the OEM tire size.

What tire pressure should a 2018 Infiniti Q70 have?

The recommended tire pressure for the 2018 Infiniti Q70 is 33 PSI front and 33 PSI rear (cold).

Can I use a different tire size on my 2018 Infiniti Q70?

It is recommended to use the OEM size P245/50R18 99V. Alternative sizes may affect speedometer accuracy, handling, and clearances.

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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2018 Infiniti Q70Tire Size & Pressure

OEM spec from the factory service manual for the 3.7 Luxe, AWD variant.

Quick Answer

OEM Tire Size

P245/50R18 99V

Pressure (Front / Rear)

33 / 33 PSI

Load Index

This vehicle's factory manual

2018 Infiniti Q70: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.

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P245/50R18 99V for Infiniti Q70

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Frequently Asked Questions

What size tires fit a 2018 Infiniti Q70?: The 2018 Infiniti Q70 uses P245/50R18 99V as the OEM tire size.
What tire pressure should a 2018 Infiniti Q70 have?: The recommended tire pressure for the 2018 Infiniti Q70 is 33 PSI front and 33 PSI rear (cold).
Can I use a different tire size on my 2018 Infiniti Q70?: It is recommended to use the OEM size P245/50R18 99V. Alternative sizes may affect speedometer accuracy, handling, and clearances.