Technical data

Black plate (8,1)
Chevrolet/GMC Duramax Diesel Supplement (GMNA Localizing-U.S./Canada-
7132827) - 2015 - CRC - 10/21/14
11-8 Service and Maintenance
Recommended Fluids
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.
Usage Fluid/Lubricant
Engine Oil Engine oils with the letters CJ-4 are required for your vehicle. The CJ-4
designation can appear either alone or in combination with other American
Petroleum Institute (API) designations, such as API CJ-4/SL. These letters
show API levels of quality. To determine the preferred viscosity for your
vehicle's diesel engine, see Engine Oil on page 10-6.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®
coolant.
See Engine Coolant on page 10-18.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, in
Canada 19299819).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.
Diesel Exhaust Aftertreatment
System
Diesel Exhaust Fluid (GM Part No. 19286291, in Canada 88862660) or
diesel exhaust fluid that meets ISO 22241-1 or displays the API Diesel
Exhaust Fluid Certification Mark.
Van Models: Parking Brake Cable
Guides
Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Power Steering System GM Power Steering Fluid (GM Part No. 89021185, in Canada 89021186).