Ford 1996 Windstar Manual page 259

Always replace a fuse with one that has the specified
amperage rating. Using a fuse with a higher amperage
rating can cause severe wire damage and could start a
fire.
Driving While You Tow
Be especially careful when driving while you tow a trailer.
Never drive faster than 45 mph (70 km/h) when you tow in
hilly country on hot days. Also, anticipate stops so that you can
brake gradually.
If you use the speed control while you are towing on very long,
steep grades, the speed control may shut off automatically.
When descending a steep grade with a trailer, operate in Drive
rather than Overdrive. If additional braking is needed, shift into
2 (Second) or 1 (First) gear.
Servicing your vehicle if you tow
If you tow a trailer for a long distance, your vehicle will need
to be serviced more frequently than usual. See the Maintenance
Schedule and Record Booklet.
Driving Your Windstar
RWARNING
257