What is the recommended tire pressure for a 2021 Subaru Outback?

The 2021 Subaru Outback uses 35 PSI cold on the front axle and 35 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.

What tire size does the 2021 Subaru Outback use?

The standard (base trim) tire size for the 2021 Subaru Outback is 225/60R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.

How do I convert the 2021 Subaru Outback tire pressure to bar?

35 PSI = 2.4 bar (front) and 35 PSI = 2.4 bar (rear). In kPa: 241 kPa front and 241 kPa rear. Multiply PSI × 0.0689 to convert to bar.

Why are the front and rear tire pressures the same on the 2021 Subaru Outback?

The 2021 Subaru Outback uses equal pressure front and rear (35 PSI). The vehicle's weight distribution and symmetric tire sizing mean both axles carry similar loads per tire.

What happens if the 2021 Subaru Outback tires are underinflated?

Running 5+ PSI low on the Subaru Outback causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.

2021 Subaru Outback Tire Pressure

OEM cold pressure spec — verified for the 2020–2024 generation

Recommended cold pressure (PSI)

Front

2.4 bar · 241 kPa

Rear

2.4 bar · 241 kPa

Tire size

225/60R18

Curb weight

1,620 kg

Front axle load

55%

Customize for your load & driving style

Pre-filled with Subaru Outback specs. Adjust weight or style below.

Recommended COLD pressure

22.2 / 22 PSI

Front (cold): 22.2 PSI(1.53 bar)
Rear (cold): 22 PSI(1.52 bar)
Front (hot est.): 24.4 PSI
Rear (hot est.): 24.2 PSI

Street setting: balanced for comfort, wear, and fuel economy. Always measure cold.

Other Subaru Outback years

2024 Outback 2023 Outback 2022 Outback 2020 Outback 2019 Outback 2018 Outback All years →

FAQ — 2021 Subaru Outback

What is the recommended tire pressure for a 2021 Subaru Outback?: The 2021 Subaru Outback uses 35 PSI cold on the front axle and 35 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.
What tire size does the 2021 Subaru Outback use?: The standard (base trim) tire size for the 2021 Subaru Outback is 225/60R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.
How do I convert the 2021 Subaru Outback tire pressure to bar?: 35 PSI = 2.4 bar (front) and 35 PSI = 2.4 bar (rear). In kPa: 241 kPa front and 241 kPa rear. Multiply PSI × 0.0689 to convert to bar.
Why are the front and rear tire pressures the same on the 2021 Subaru Outback?: The 2021 Subaru Outback uses equal pressure front and rear (35 PSI). The vehicle's weight distribution and symmetric tire sizing mean both axles carry similar loads per tire.
What happens if the 2021 Subaru Outback tires are underinflated?: Running 5+ PSI low on the Subaru Outback causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.