DIFFERENTIAL FLUID

[G-700903]

what is the correct oem differential fluid for a 2016 Buick envision, AWD, 2.0 I'm get conflicting part numbers online and I don't see it in my owner's manual.
THANKS!

 

[Andy777]

Google Gemini says: (it sounds to me like it requires 2 different fluids)

Rear Differential Gear Oil​

The gear oil side of the rear differential requires a synthetic gear lubricant with a viscosity of SAE 75W-90. The recommended OEM fluid is:

• GM Part Number: 19352759 (supersedes 88863089)
  
  
  
  
• ACDelco Part Number: 10-4016
  
  
  
  
• Specification: API GL-5
  
  

This fluid ensures proper lubrication and protection of the ring and pinion gears within the differential.

Twin-Clutch System Hydraulic Fluid​

The electronically controlled twin-clutch system, which manages the torque distribution to the rear wheels, uses a specific hydraulic fluid. The correct OEM fluid for this system is:

• GM Part Number: 88862624
  
  
  
  
• ACDelco Part Number: 10-4034
  
  
  
  
• Specification: DEXRON LS Gear Oil (75W-90)
  
  

The "LS" designation in this fluid is important as it contains the necessary friction modifiers for the proper operation of the clutch packs within the rear drive module. Using a standard gear oil without these additives can lead to improper AWD system engagement, noise, and potential damage.