flyskate

Was over 100 degrees for the past few days, lost a couple tenths mpg. nothing too serious..

I have a 2016 FFH SE as well, the first 2000 miles the MPG was around what you're stating you get. Now at 6900 miles I'm avg 43.7 and that is increasing steadily, many of my trips are avg closer to 49 mpg. You have to allow for the break in of the engine and bearings etc.

added