Chevrolet Silverado 4500HD 2022 Owner's Manual page 365

Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.
Usage
Chassis Lubrication, Rear Driveline Center
Spline
Diesel Exhaust Aftertreatment System
Engine Coolant
Engine Oil
Front and Rear Axle
Front Axle Propshaft Spline
Hydraulic Brake System
Hydraulic Power Steering System
Key Lock Cylinders, Hood Hinges, Body Door
Hinge Pins, Hinges, Latch Bolt, and Linkage
Transfer Case (Four-Wheel Drive)
Chassis lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Diesel Exhaust Fluid that meets ISO 22241 or displays the API Diesel Exhaust Fluid
Certification Mark.
50/50 mixture of clean, drinkable water and use only DEX-COOL coolant. See Cooling System
0 278.
Engine oils with the letters CK-4 are required for your vehicle. The CK-4 designation can
appear either alone or in combination with other American Petroleum Institute (API)
designations, such as API CK-4/SL. These letters show API levels of quality. To determine the
preferred viscosity for your vehicle's diesel engine, see Engine Oil 0 273.
See your dealer.
Chassis lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
DOT 3 Hydraulic Brake Fluid.
Automatic Transmission Fluid Type III.
Multi-Purpose Lubricant, Superlube. See your dealer.
40W full synthetic oil that meets SAE J2360 or Meritor 081.
Service and Maintenance
Fluid/Lubricant
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