Write down what the truck needs to carry before you choose a 2025 Ford F-150. Include the people, tools, cargo, and trailer you expect to take with you. That list can eliminate the wrong configuration faster than comparing trim names.
The 2025 fuel-economy records distinguish 2.7-liter and 3.5-liter turbocharged V6 versions, a 5.0-liter V8, and a 3.5-liter hybrid, with separate entries for off-road variants. Those choices matter, but an engine name alone does not establish what a particular used truck can tow or carry.
Buy the capacity of the truck in front of you
A maximum towing figure in an advertisement describes a qualifying configuration. It should not be copied onto another truck because the badge and model year match.
Have the seller identify the actual cab, bed, engine, drivetrain, axle information, and factory towing equipment. Use those details with the applicable model-year towing documentation. Read the truck's loading labels as well. If the seller cannot establish the configuration, resolve it before treating the truck as suitable for your trailer.
Payload is especially easy to overlook. Passengers, cargo, added equipment, and the load the trailer places on the truck all use capacity. A truck can look comfortably large while having less room in its load allowance than you expected.
For a simple illustration, start with an actual vehicle label allowing 1,700 pounds of occupants and cargo. Subtract 600 pounds of occupants, 200 pounds of added cargo and hitch equipment, and a measured 750-pound trailer tongue load. That leaves 150 pounds in this calculation. It does not establish that the combination is safe to tow: axle, hitch, tire, trailer, and combined-weight limits still have to be satisfied.
The example is a reason to do the arithmetic before buying. It is not a rating for any listed F-150.
Look at the truck's previous work
Have the inspection cover the underbody, hitch area, suspension, tires, and any modifications as well as normal mechanical condition. A lift, different tires, or other aftermarket equipment deserves a discussion about its effect on the truck's intended use. Good appearance does not explain installation quality.
Service records are particularly useful when the truck has worked hard. Discuss the previous use with the seller and give the inspecting technician anything that needs follow-up. You are evaluating this truck's condition, not trying to prove that every work truck is worn out.
Once the capacity is established, compare the comfort and equipment you will use. A more expensive trim may be worth having. It should not be the reason you overlook a truck that cannot do the job.
For a tow vehicle, I would settle the load calculation before becoming attached to the color.