What is the recommended tire pressure for a 2020 RAM 2500?

The 2020 RAM 2500 uses 55 PSI cold on the front axle and 65 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 2020 RAM 2500 use?

The standard (base trim) tire size for the 2020 RAM 2500 is 265/70R17. 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 2020 RAM 2500 tire pressure to bar?

55 PSI = 3.8 bar (front) and 65 PSI = 4.5 bar (rear). In kPa: 379 kPa front and 448 kPa rear. Multiply PSI × 0.0689 to convert to bar.

Why are the front and rear tire pressures different on the 2020 RAM 2500?

The 2020 RAM 2500 uses 55 PSI front and 65 PSI rear because the two axles carry different loads. The front axle carries roughly 54% of the vehicle's 2900 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.

What happens if the 2020 RAM 2500 tires are underinflated?

Running 5+ PSI low on the RAM 2500 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.

What do the numbers in 265/70R17 mean on the 2020 RAM 2500?

On the 2020 RAM 2500, 265/70R17 breaks down as: 265 = section width in millimetres (10.43"), 70 = aspect ratio (the sidewall is 70% of the width, so 185.5 mm / 7.3" tall), R = radial construction, and 17 = the wheel diameter in inches.

What is the overall diameter of the 2020 RAM 2500 tires?

The 265/70R17 tire on the 2020 RAM 2500 has an overall diameter of about 31.61" (803 mm) and a rolling circumference of roughly 99.29", giving about 638 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.

2020 RAM 2500 Tire Pressure

OEM cold pressure spec — verified for the 2019–2024 generation.

Recommended cold pressure

Front

55PSI

379 kPa

Rear

65PSI

448 kPa

Tire size

265/70R17

Curb weight

2,900 kg

Front axle

54%

2020 RAM 2500 tire size: 265/70R17

The factory (base-trim) tire size for the 2020 RAM 2500 is 265/70R17. Here is what that size measures out to in the real world — useful when comparing replacement tires or checking whether a different size will fit.

Section width

265 mm

10.43"

Aspect ratio

70%

185.5 mm sidewall

Wheel diameter

17"

rim

Overall diameter: 31.61"; 803 mm
Sidewall height: 7.3"; 185.5 mm
Circumference: 99.29"; rolling
Revs / mile: 638; approx.

Staying within ±3% of the 31.61" overall diameter keeps your speedometer accurate. A larger diameter reads slower than your true speed; a smaller one reads faster.

Custom adjustment

Tune for your load & driving style

Pre-filled with RAM 2500 specs. Adjust weight or style below.

Recommended COLD pressure

22 / 22 PSI

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

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

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FAQ

2020 RAM 2500

What is the recommended tire pressure for a 2020 RAM 2500?: The 2020 RAM 2500 uses 55 PSI cold on the front axle and 65 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 2020 RAM 2500 use?: The standard (base trim) tire size for the 2020 RAM 2500 is 265/70R17. 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 2020 RAM 2500 tire pressure to bar?: 55 PSI = 3.8 bar (front) and 65 PSI = 4.5 bar (rear). In kPa: 379 kPa front and 448 kPa rear. Multiply PSI × 0.0689 to convert to bar.
Why are the front and rear tire pressures different on the 2020 RAM 2500?: The 2020 RAM 2500 uses 55 PSI front and 65 PSI rear because the two axles carry different loads. The front axle carries roughly 54% of the vehicle's 2900 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.
What happens if the 2020 RAM 2500 tires are underinflated?: Running 5+ PSI low on the RAM 2500 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.
What do the numbers in 265/70R17 mean on the 2020 RAM 2500?: On the 2020 RAM 2500, 265/70R17 breaks down as: 265 = section width in millimetres (10.43"), 70 = aspect ratio (the sidewall is 70% of the width, so 185.5 mm / 7.3" tall), R = radial construction, and 17 = the wheel diameter in inches.
What is the overall diameter of the 2020 RAM 2500 tires?: The 265/70R17 tire on the 2020 RAM 2500 has an overall diameter of about 31.61" (803 mm) and a rolling circumference of roughly 99.29", giving about 638 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.