The 2013 Ford F-150 with the 3.5-liter engine uses about 14 quarts (roughly 13 liters) of automatic transmission fluid for a full fill that includes the torque converter. A standard pan drain and refill typically replaces about 8–10 quarts, depending on the exact service performed.
In this model year, the 3.5-liter engine is paired with a six-speed automatic transmission. Service capacity can vary slightly depending on whether you replace the filter, perform a torque converter drain, or just drain the pan. The figures below reflect common scenarios encountered during maintenance.
Capacity and service scenarios
Below are typical capacity figures for the 2013 F-150 3.5 with a six-speed automatic transmission. Use these as a general guide, and consult the owner's manual or a dealer for the exact specification for your vehicle.
- Total system capacity (full fill, including torque converter): about 13.5–14 quarts (approximately 12.8–13.2 liters).
- Pan drain and refill (no torque converter drain): typically about 7–9 quarts are replaced.
- Full service change (pan drain + filter replacement, then refill to proper level): expect to add roughly 9–11 quarts after the initial drain, then top off to the full capacity of around 13.5–14 quarts if needed.
Concluding note: when performing a transmission service, the exact amount you drain and the amount you need to add can vary based on whether the torque converter was drained and whether the filter is replaced. Always verify using the vehicle’s dipstick and follow the Ford maintenance guidelines for the final fill level.
Checking and maintaining transmission fluid
To check the fluid level, warm up the engine to operating temperature, apply the parking brake, and leave the transmission in Park. With the engine running, pull the dipstick, wipe it clean, reinsert fully, then remove again to check the level. The fluid should be between the “ADD” and “FULL” marks. When adding fluid, do so in small increments and recheck to avoid overfilling. Use the recommended automatic transmission fluid (Dexron VI is commonly specified for these transmissions) and follow the manual’s intervals for changes, which typically depend on mileage and driving conditions.
Summary
For a 2013 F-150 with a 3.5-liter engine, plan for about 14 quarts (roughly 13 liters) for a full transmission fill, including the torque converter. A standard pan drain and refill usually consumes 7–9 quarts, while a full service with filter change may require 9–11 quarts before topping up to the full capacity. Always verify with the dipstick after servicing and consult the owner’s manual for exact specifications.