GMC Cadillac XT4 2019 Owner's Manual page 318

Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Usage
Automatic Transmission
Electronic Limited-Slip Differential
Hydraulic Apply Fluid (AWD Only)
Engine Coolant
Engine Oil
Hood Latch Assembly, Secondary Latch,
Pivots, Spring Anchor, and Release Pawl
Hydraulic Brake System
Key Lock Cylinders, Hood and Door
Hinges
Rear Axle/Front Axle
Transfer Case (All-Wheel Drive)
Weatherstrip Conditioning
Windshield Washer
DEXRON-VI Automatic Transmission Fluid.
DEXRON-VI Automatic Transmission Fluid.
50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See
Cooling System 0 254.
Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil 0 249.
Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
DOT 3 Hydraulic Brake Fluid.
Multi-Purpose Lubricant, Superlube (GM Part No. 12346241).
See your dealer.
Transfer Case Fluid (GM Part No. 88861950).
Weatherstrip Lubricant. See your dealer.
Automotive windshield washer fluid that meets regional freeze protection
requirements.
SERVICE AND MAINTENANCE
Fluid/Lubricant
317