Back to 2020 Chevrolet Express
Help
2020 CHEVROLET EXPRESS
6.6L V8 Duramax Diesel•RWD•AUTOMATIC•diesel•turbo
1 active safety recall on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor542Torque3598Fluid7DTC821Battery1Maintenance0Recalls1
Fluid · Automatic Transmission

Automatic Transmission

for 2020 Chevrolet Express 6.6L V8 Duramax Diesel · RWD
Fluid Type
Dexron VI ATF
Spec: GM Dexron VI
Capacity
13.5qt
12.77 L
Drain & Refill
5 qt
4.73 L
Change Interval
50,000 mi
80,450 km

Notes

6L90 6-speed automatic with diesel engine

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

Other fluid systems on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota 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 Chevrolet Express 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 Chevrolet Express — $99 →
Building an app?
Free API access to all this data — 50 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 →