Took my 2019 on a road trip to Florida this past week. Towed a golf cart on a 5x10 trailer. Transmission had the hardest time keeping a gear consistent. Seems like it was in between 6-7-8 most of the time. I always had to manually change it up.
Is their a tow mode? Gas mileage was horrible with it chasing gears.

 

I go to Florida twice a year,pulling a trailer,about 1200 lbs.I had a 2013 RDX for years and it would "hunt" between 5th and 6th ,most of the way.I would only get 18 MPG. I went with My 2018 MDX in March.Did not notice the "hunting". Only got 20 MPG.