Automatic Transmission

for 2020 Ram 3500 6.7L I6 Cummins Diesel · RWD

Fluid Type

ATF+4 or ZF LifeguardFluid 8

Spec: ZF LifeguardFluid 8 or Mopar ATF+4

Capacity

18qt

17.03 L

Drain & Refill

6 qt

5.68 L

Data quality

Book-style estimate

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Notes

68RFE transmission uses ATF+4. Aisin AS69RC uses ZF LifeguardFluid 8. Factory fill is lifetime; service fill (pan drop) is approximately 6 quarts. Total capacity varies by application.

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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. Spot an error? Use the Help link above — a human reads every report.

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