FORD 2013 Fusion v.2 - Manual (Page 214)

Your vehicle may tow a Class I trailer
provided the maximum trailer weight is
less than or equal to the maximum trailer weight listed for your vehicle configuration
on the following chart.
Maximum Trailer Weight - lb (kg) *
Powertrain
1000 (454) 1.6L GTDI
2000 (907) 2.0L GTDI
1000 (454) 2.5L TiVCT
* Calculated with SAE J2807 method.
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Towing