Tire Size Specification
Verified OEM & Service Reference2018 Lexus Gs 5.0L 8-cyl — Tire Size
Recommended interval: Rotate every 5,000–7,500 miles; check cold PSI monthly
Engine / Trim Variant
Factory Tire Size
235/50R17 / 235/45R18 / 235/40R19 / 255/35R19
Rear Factory Size
235/50R17 / 235/45R18 / 265/35R19 / 235/40R19
Technical Specifications
| Front Tire Size | 235/50R17 / 235/45R18 / 235/40R19 / 255/35R19 |
|---|---|
| Rear Tire Size | 235/50R17 / 235/45R18 / 265/35R19 / 235/40R19 |
| Rim / Wheel Size | 17" |
| Matched Trims | 300, 300 F Sport, 350 |
Compatible Aftermarket Options
Direct OEM cross-references- Buy Michelin / Continental / Pirelli 235/50R17 on AmazonMichelin / Continental / Pirelli235/50R17
Search query: 235/50R17 tire
Tire Size Fitment by Engine / Trim (2018 Lexus Gs)
| Engine / Trim | Oil Spec & Capacity | OEM Oil Filter |
|---|---|---|
| 3.5L 6-cyl | — • N/A | Verify by VIN |
| 3.5L 6-cyl Hybrid | — • N/A | Verify by VIN |
| 2.0L 4-cyl Turbo | — • N/A | Verify by VIN |
| 5.0L 8-cyl | — • N/A | Verify by VIN |
DIY Fitment & Verification Checklist for 2018 Lexus Gs
- Confirm your engine code or trim variant above before ordering parts, as mid-year production changes can affect tire size fitment.
- When purchasing OEM or aftermarket brands (Motorcraft, ACDelco, Mopar, Wix, Fram, Mobil 1, Bosch, NGK), cross-check the Amazon Garage Confirmed Fit badge with your 17-digit VIN.
- Always consult your 2018 Lexus Gs owner's manual for exact torque specs and fluid service intervals.
Sources: NHTSA vPIC & OEM Service SpecificationsReport an inaccurate spec or part number
Frequently Asked Questions
What is the OEM tire size specification for a 2018 Lexus Gs?
The primary OEM tire size part number / specification for the 2018 Lexus Gs 5.0L 8-cyl is 235/50R17 / 235/45R18 / 235/40R19 / 255/35R19.
Which aftermarket tire size brands fit the 2018 Lexus Gs?
Compatible aftermarket options include Michelin / Continental / Pirelli 235/50R17.