What size tires fit a 2018 Lexus GS?

The 2018 Lexus GS uses P235/45R18 94V as the OEM tire size.

What tire pressure should a 2018 Lexus GS have?

The recommended tire pressure for the 2018 Lexus GS is 35 PSI front and 35 PSI rear (cold).

Can I use a different tire size on my 2018 Lexus GS?

It is recommended to use the OEM size P235/45R18 94V. Alternative sizes may affect speedometer accuracy, handling, and clearances.

Safety Warning

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 Lexus GSTire Size & Pressure

OEM spec from the factory service manual for the Base variant.

Quick Answer

OEM Tire Size

P235/45R18 94V

Pressure (Front / Rear)

35 / 35 PSI

Load Index

Source: Factory service manual — 2018 Lexus GS Base. View full manual section →

Other specs:All specs Oil Type Coolant

Shop Tires

Replacement Tires

P235/45R18 94V for Lexus GS

Search Amazon →

Tool

Digital Tire Pressure Gauge

Search Amazon →

Frequently Asked Questions

What size tires fit a 2018 Lexus GS?: The 2018 Lexus GS uses P235/45R18 94V as the OEM tire size.
What tire pressure should a 2018 Lexus GS have?: The recommended tire pressure for the 2018 Lexus GS is 35 PSI front and 35 PSI rear (cold).
Can I use a different tire size on my 2018 Lexus GS?: It is recommended to use the OEM size P235/45R18 94V. Alternative sizes may affect speedometer accuracy, handling, and clearances.