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2026 CHEVROLET EXPRESS
6.6L V8 Duramax Diesel•RWD•AUTOMATIC•diesel•turbo
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor491Torque146Fluid8DTC1103Battery1Maintenance0Recalls3
Fluid · Coolant

Coolant

for 2026 Chevrolet Express 6.6L V8 Duramax Diesel · RWD
Fluid Type
Dex-Cool 50/50 orange extended life
Spec: GM6277M
Capacity
20qt
18.92 L
Drain & Refill
16 qt
15.14 L
Change Interval
150,000 mi
241,350 km

Notes

First change 150k miles or 5 years, then every 5 years/150k. Larger cooling system for diesel.

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Other fluid systems on this vehicle

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🔧 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.
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