Chevrolet Silverado 1500 2023 Owner's Manual page 422

Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see Recommended Fluids and Lubricants
in the Duramax diesel supplement.
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.
Usage
Automatic Transmission (8-Speed
Transmission)
Automatic Transmission (10-Speed
Transmission)
Chassis Lubrication
Engine Coolant
Engine Oil
Front and Rear Axle Driveshaft Splines
Front Axle (Four-Wheel Drive) and Rear Axle
Hydraulic Brake System
DEXRON-HP Automatic Transmission Fluid.
DEXRON ULV Automatic Transmission Fluid.
Chassis lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
50/50 mixture of clean, drinkable water and use only DEX-COOL coolant. See Cooling System
0 343.
Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1
full synthetic is recommended. See Engine Oil 0 338.
See your dealer.
See your dealer.
DOT 4 Hydraulic Brake Fluid. See Brake Fluid 0 350.
Service and Maintenance
Fluid/Lubricant
421