Back to 2020 Cadillac CT6
Help
2020 CADILLAC CT6
3.6L V6•AWD•gas•LGX
2 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor1019Torque264Fluid17DTC2506Battery2Maintenance0Recalls2
Fluid · Automatic Transmission

Automatic Transmission

for 2020 Cadillac CT6 3.6L V6 · AWD
Fluid Type
Dexron VI ATF
Spec: GM Dexron VI
Capacity
10.5qt
9.93 L
Drain & Refill
5 qt
4.73 L

Notes

8L90 8-speed automatic, lifetime fill per GM but service recommended at 50k-75k miles for severe duty

Buy on Amazon
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other fluid systems on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2020 Cadillac CT6 repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Cadillac CT6 — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →