Elkhart Jim and Wayne77590 .. Thank you both for your reply. The FMC towable guide says you can tow an Explorer 4x4. The manual says no to 4x4, but then under recreational towing says can be towed if has 3.5 ecoboost or duratec systems. We could find no way on the vehicle to determine if it was equipped with duratec system. We know it was not ecoboost. Does anyone know how to determine if the vehicle has duratec system? I’ve attached the page in the manual in case someone interprets it differently. Thank you