18-inch Wheels
Mazda CX-9 — 18-inch Wheels Tire Pressure
For 18-inch wheels use on the Mazda CX-9, set cold pressures to 35 PSI front and 35 PSI rear.
18-inch Wheels cold pressure
Front
35
241 kPa
Rear
35
241 kPa
OEM spec
35/35 PSI
Tire size
255/45R20
Curb weight
1,960 kg
Category
suv
18-inch is common OEM sizing — use factory pressures unless otherwise specified on the door sticker.
Community-tuned pressures based on OEM spec + typical use-case deltas. Always verify against your door-jamb sticker for your exact trim and load rating. Minimum safe pressure is 24 PSI for most passenger tires.
Other setups for this CX-9
FAQ
Frequently asked
- What tire pressure should I use for 18" driving in the Mazda CX-9?
- For 18-inch wheels use on the Mazda CX-9, set cold pressures to 35 PSI front and 35 PSI rear. 18-inch is common OEM sizing — use factory pressures unless otherwise specified on the door sticker.
- What is the OEM tire pressure for the Mazda CX-9?
- The factory cold pressure spec for the 2016–2023 Mazda CX-9 is 35 PSI front / 35 PSI rear. Always use the door-jamb sticker for your specific trim.
- Is switching to 18-inch wheels safe on the Mazda CX-9?
- Wheel size changes are fine as long as the overall tire diameter stays within ±3% of the OEM 255/45R20. Pressures typically stay close to OEM; the 35/35 setting above accounts for the small sidewall change.
- What is 35 PSI in bar or kPa?
- 35 PSI = 2.4 bar = 241 kPa. The rear 35 PSI = 2.4 bar.
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