How much transmission fluid does a transmission take?
Most automatic transmissions require about 8–16 quarts (7.5–15 liters) of ATF for a full drain-and-fill service; a simple pan drain and refill typically replaces about 5–7 quarts. Exact capacity depends on the vehicle, so always check the owner's manual or the manufacturer’s specifications for your model.
What determines transmission fluid capacity
Transmission fluid capacity isn’t a single number. It varies with the transmission type, whether you’re doing a complete fluid change or a pan-only service, and whether fluid in the torque converter, cooler lines, and associated passages needs replacement.
Key factors that influence capacity
Below are the main factors that affect how much fluid your transmission holds and how much you’ll need to add during service.
- Transmission type and model (automatic, manual, CVT, or dual-clutch).
- Type of service (pan drop and refill vs. complete drain and fill).
- Torque converter and cooler lines contributing to total fluid volume.
- Fluid specification requirements (different fluids are not interchangeable).
Because capacities vary widely, always confirm with the vehicle’s manual or the dealer for your exact model and service procedure.
Typical capacities by transmission type
Here are broad ranges to guide planning. Use these figures as starting points, but verify for your specific car.
- Automatic transmissions (pan drop and refill): commonly replace about 5–7 quarts, with total capacity often in the 8–16 quart range depending on the model.
- Automatic transmissions (full drain and fill, including torque converter): typically around 10–16 quarts for many cars.
- Manual transmissions: usually about 2–3 quarts, though some designs hold closer to 1.5–2 quarts.
- CVTs and dual-clutch transmissions: capacities vary widely, typically roughly 4–8 quarts, with exact amounts depending on the model.
The exact figure for any given vehicle is found in the owner's manual or a factory service bulletin. If you’re planning a service, use the specified fluid type and follow the recommended procedure to avoid overfilling or underfilling.
How to determine the exact capacity for your vehicle
To get the precise capacity for your car, follow these steps. They help ensure you buy the correct amount of fluid and perform the service safely.
- Check the owner’s manual or service manual under Specifications for fluid capacity.
- If the manual isn’t available, search the manufacturer’s site or reliable repair databases by make, model, and year.
- Consult a dealership service department or qualified mechanic, especially for full drain-and-fill procedures.
Using the exact capacity and the correct fluid type prevents issues from overfilling, underfilling, or using the wrong lubricant.
Important notes on fluid types and service procedures
Use the transmission fluid specified by the manufacturer. Many transmissions require Dexron VI, Mercon LV, Toyota WS, or other specialized fluids, and CVTs use dedicated CVT fluids. For a full drain-and-fill, plan for more fluid than a simple pan refill because the torque converter and cooler lines may contain old fluid that needs replacement. Always follow the recommended procedure and check the level with the engine running and the transmission at operating temperature (and in Park, if applicable) when measuring—unless the vehicle’s manual states otherwise.
Summary
Transmission fluid capacity is model-specific and depends on the type of service performed. Automatics generally require about 8–16 quarts for a full drain-and-fill, with 5–7 quarts replaced in a pan drain-and-refill. Manuals typically hold 2–3 quarts, while CVTs/dual-clutch systems vary widely. Always verify the exact capacity and fluid specification in the owner’s manual or with a dealer to ensure proper fill levels and transmission health.
