326 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Usage Fluid/Lubricant
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine
Oil 0 234.
Engine Cooling System Premix DEX-COOL
®
(GM Part No. 12378390, in Canada 10953456). See
Engine Coolant 0 241.
High Voltage Battery Cooling System Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456).
Power Electronics Cooling System Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456).
Brake Hydraulic 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.
Electric Drive Unit DEXRON
®
-VI Automatic Transmission Fluid.
Key Lock Cylinders, Hood and Hatch
Hinges
Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or
Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481.