Chevrolet Low Cab Forward 6.7L 2022 Owner's Manual page 293

292 Technical Data
Oil filter
Engine oil capacity
Engine coolant capacity
Preheating system
Transmission Specifications
Model
Gear ratio
Reverse
Transmission oil capacity
Weights
Axle weight rating: Front
ALLISON2550RDS
Six-speed automatic transmission (overdrive gear for 5th and 6th), lock-up clutch for 2nd to 6th
1st
2nd
3rd
4th
5th
6th
Cartridge (spin on) type
When changing oil and filter:
*1
15.1 L (16.0 qt)
31.2 L (33.0 qt) *2
Grid heater
3.512
1.896
1.439
1.000
0.737
0.643
5.090
14.0 L (14.8 qt)*1
Tire size 11R22.5: 5,443 kg (12,000 lb)
Tire size 255/70R22.5: 4,989 kg (11,000 lb)