I swear by Mobil 1 Full Synthetic. I've used that oil on my 2011 F 150 3.5 liter since new and 385,000 miles later the motor runs like new.
I'll be using Mobil 1 on my Maverick as well.
My current Vehicle 2011 F150 was selected for the same purpose. 371,000 miles later its still going strong. Hoping you get the same type of endurance with yours
Having the rear sliding window allows you to carry extra long lumber or other items that are too long to load in the box that hang out the back too far. Plus like others have said great for positive airflow. Use mine all the time when i have the sunroof open