2020 Cadillac CT6 Differential fluid
Depends on your version. Choose yours, or compare them here.
- Except V-Series SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) front differential·0.4 L L front differential·SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) rear differential
- V-Series SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) front differential·0.4 L L front differential·SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625) rear differential
- Except V-Series, 3.6L V6 (not 4.2L V8 Twin Turbo) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) front differential·0.4 L L front differential·0.5 L L rear differential
- 4.2L V8 Twin Turbo (LTA) Engine or V-Series SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) front differential·0.4 L L front differential·1.1 L L rear differential
- All-Wheel Drive Transfer Case Fluid (GM Part No. 19331044, in Canada 19331045) transfer case
- AWD 0.8 L L transfer case
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090)
Front differential
- Front differential0.4 L L
- Rear differentialSAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090)
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090)
Front differential
- Front differential0.4 L L
- Rear differentialSAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625)
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090)
Front differential
- Front differential0.4 L L
- Rear differential0.5 L L
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090)
Front differential
- Front differential0.4 L L
- Rear differential1.1 L L
Transfer Case Fluid (GM Part No. 19331044, in Canada 19331045)
Transfer case · All-Wheel Drive
0.8 LL
Transfer case · AWD
2020 Cadillac CT6 Owner's Manual, PDF pages 369 and 375
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · Except V-Series · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · V-Series · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625).
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · Except V-Series, 3.6L V6 (not 4.2L V8 Twin Turbo) · PDF page 375
Rear Axle 0.5 L 0.53 qt
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · 4.2L V8 Twin Turbo (LTA) Engine or V-Series · PDF page 375
Rear Axle 4.2L V8 Twin Turbo (LTA) Engine or V-Series 1.1 L 1.16 qt
Differential fluid (transfer case) · All-Wheel Drive · PDF page 369
Transfer Case Fluid (GM Part No. 19331044, in Canada 19331045).
Differential fluid (transfer case) · AWD · PDF page 375
Transfer Case – AWD 0.8 L 0.85 qt
2020 Cadillac CT6 Owner's Manual, PDF pages 369 and 375
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · Except V-Series · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
2020 Cadillac CT6 Owner's Manual, PDF pages 369 and 375
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · V-Series · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625).
2020 Cadillac CT6 Owner's Manual, PDF pages 369 and 375
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · Except V-Series, 3.6L V6 (not 4.2L V8 Twin Turbo) · PDF page 375
Rear Axle 0.5 L 0.53 qt
2020 Cadillac CT6 Owner's Manual, PDF pages 369 and 375
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Differential fluid (front differential) · All versions · PDF page 369
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).
Differential fluid (front differential) · All versions · PDF page 375
Front Axle 0.4 L 0.42 qt
Differential fluid (rear differential) · 4.2L V8 Twin Turbo (LTA) Engine or V-Series · PDF page 375
Rear Axle 4.2L V8 Twin Turbo (LTA) Engine or V-Series 1.1 L 1.16 qt
2020 Cadillac CT6 Owner's Manual, PDF page 369
Transfer Case Fluid (GM Part No. 19331044, in Canada 19331045).Open the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Differential fluid (transfer case) · All-Wheel Drive · PDF page 369
Transfer Case Fluid (GM Part No. 19331044, in Canada 19331045).
2020 Cadillac CT6 Owner's Manual, PDF page 375
Transfer Case – AWD 0.8 L 0.85 qtOpen the manual at this page ↗Added Oct 17, 2026 · Updated
See where it's printed
Differential fluid (transfer case) · AWD · PDF page 375
Transfer Case – AWD 0.8 L 0.85 qt
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| All versions | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090)front differential | “SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).” | PDF page 369 ↗ |
| All versions | 0.4 L Lfront differential | “Front Axle 0.4 L 0.42 qt” | PDF page 375 ↗ |
| Except V-Series | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090)rear differential | “SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090).” | PDF page 369 ↗ |
| V-Series | SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625)rear differential | “SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625).” | PDF page 369 ↗ |
| Except V-Series, 3.6L V6 (not 4.2L V8 Twin Turbo) | 0.5 L Lrear differential | “Rear Axle 0.5 L 0.53 qt” | PDF page 375 ↗ |
| 4.2L V8 Twin Turbo (LTA) Engine or V-Series | 1.1 L Lrear differential | “Rear Axle 4.2L V8 Twin Turbo (LTA) Engine or V-Series 1.1 L 1.16 qt” | PDF page 375 ↗ |
| All-Wheel Drive | Transfer Case Fluid (GM Part No. 19331044, in Canada 19331045)transfer case | “Transfer Case Fluid (GM Part No. 19331044, in Canada 19331045).” | PDF page 369 ↗ |
| AWD | 0.8 L Ltransfer case | “Transfer Case – AWD 0.8 L 0.85 qt” | PDF page 375 ↗ |
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