A lot of people complain about how low their oil is with the factory fill. I'm not sure if it's due to oil consumption or if these engines are being sent out from the factory with low oil. I still need to check mine. I've owned the truck for a month and have only driven it twice. It now has about 140 miles on the odometer. The 2015 is my daily driver and workhorse. The 2020 is the designated highway warrior.Nice; looking forward to comparing those factory oil results.
Someone mentioned that the 3rd gen engine is already broke-in from the factory. I'm going to read my owner's manual today to make sure that is true. Even so, I will try to put 500 miles on the engine before I do any towing. This will help break-in the gears and transmission before I put much stress on the truck.
If the owner's manual says the engine is already broke-in, then I'll probably change the factory fill at 4,000 miles or 6 months, whichever comes first.