For a full transmission fluid change on a 2019 Ram 1500 with the 8-speed automatic, expect about 12 quarts of ATF+4. A drain-and-fill without replacing the filter typically replaces roughly 4 to 7 quarts, depending on the service method and whether the torque converter is involved. Exact figures can vary by engine variant and VIN, so always verify with the owner's manual or dealer literature.
In practice, technicians distinguish between a complete service (pan drop, new filter, and a full system refresh) and a lighter drain-and-fill. The official capacity range for the 8-speed automatic can differ slightly between configurations (for example 8HP70 vs 8HP75) and is influenced by whether the torque converter is drained and by the presence of a cooler line flush. Always use the fluid type specified by FCA and consult VIN-specific service data for precision.
Service scenarios and typical capacities
The following figures are common estimates used in shops for a 2019 Ram 1500 with an 8-speed automatic. They assume the use of Mopar ATF+4 or an equivalent meeting FCA specs.
- Full transmission service (pan drop, new filter, and complete fluid refresh, typically including the torque converter drain): about 12 to 13 quarts.
- Drain-and-fill only (no filter change, no pan gasket replacement): about 4 to 7 quarts.
Note: These numbers are approximate and can vary by VIN, engine option, and service procedure. For precise capacity and steps, consult the official service manual or a Ram dealer.
Fluid type and service notes
The 2019 Ram 1500’s 8-speed automatic typically requires Mopar ATF+4 to meet Chrysler/Fiat transmission specifications. Do not substitute Dexron or other fluids unless explicitly approved by FCA. Always verify the correct specification for your VIN and follow the manufacturer’s recommended procedure when filling and checking fluid levels.
When performing any transmission service, vehicle should be warmed up and the level checked according to the owner's manual, with the engine running and the transmission in Park (or as specified). If you’re unsure, have the service performed by a qualified technician to ensure proper fill and shifting performance.
Summary
The short answer is that a full fluid change on a 2019 Ram 1500 typically calls for about 12 quarts of ATF+4, while a drain-and-fill only generally replaces around 4–7 quarts. Always confirm exact capacity for your VIN and use the specified fluid type to maintain proper transmission performance and longevity.