Quote Originally Posted by FamilyMan View Post
I mostly use the wife's '16 slide esv (8 spd) to tow the Max and it does a solid job. Due to the air suspension have to use a 4" drop ball. Average 9.5 towing when we took it to central Texas. I would estimate its a bit heavier combo than 5700# though.

Believe the boat dry weight is 4400#, add 60ish gallons of fuel (400#) and then in my case 750# lead and looking closer to 7k not including another couple hundred in gear/anchor.

Really looking forward to trading it in for a lightly used navigator with that sweet HO 3.5 in a couple years. Have towed with my fathers plain jane '16 ecoboost 3.5 with just the 6spd and power wise I liked it better than the 6.2 in the slade. Gas mileage is not any better, but similar to a diesel rather than kick down a gear it just spools a bit more boost since at towing speeds you are basically in the fat end of the torque curve.
Yeah we have a 15 Expedition with the 3.5 and I usually just lock out 6th gear. With the 3.15 rear axle that keeps the rpms right around 2000 at 70 mph and rarely downshifts. If I use 6th the rpms drop to like 1600-1700 and I find it will then down shift to make it up over passes on the freeway. If we had the 3.73 we probably wouldn’t need to lock out 6th. This is with a Mojo that clocked in at 6900 on the Cat Scales


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