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Chevrolet/GMC 3.0L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-13336148) - 2020 - CRC - 9/5/19
Service and Maintenance
61
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
The following fluids apply to vehicles with a Duramax diesel engine. For other fluids not listed here, see
“
Recommended Fluids and Lubricants
”
in the owner
’
s manual.
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be
obtained from your dealer.
Usage
Fluid/Lubricant
Automatic Transmission
DEXRON ULV Automatic Transmission Fluid.
Diesel Exhaust Aftertreatment
System
Diesel Exhaust Fluid that meets ISO 22241 or displays the API Diesel
Exhaust Fluid Certification Mark.
Engine Coolant
50/50 mixture of clean, drinkable water and use only DEX-COOL coolant.
See
or
Engine Oil
Engine oil meeting the dexosD specification of the proper SAE viscosity
grade. ACDelco dexosD is recommended. See
.