I've read through some of the threads and seeing different opinions. I bought my truck in 01/2021 and it has 3,800 miles with 230 engine hours, most miles are city. I live in Florida and temps are in the 90's now. Owner's manual refers to oil change indicator system, but not sure what or how this displays as the manual does not state this. I have the base instrument panel as well. I called the Dealer and got two different answers, one said wait for the Oil change indicator to display and the other stated 5,000 miles. I'm thinking change at 4,000 miles due to the heat and city miles. Concerned about this so if anyone has input I would appreciate comments.