Hello Scotty! wish you were still in Houston ! I didn't know about the problems that are possible to run into with my 2018 F150 3.5 ecoboost , twin turbos.  I have 55,432 miles on it and haven't experienced any problems so far !  please tell me how I should maintain the engine and transmission. I change the oil and filter every 5,000 miles with fully synthetic oil.  I am wondering if I should have the transmission fluid drained and not flushed ?  I also have been told that I need to replace the spark plugs and coils between 50,000 and 70,000 miles.  I am concerned about the timing chains and the waist gates as far as how long they may last ?  I often get 20 mpg. in the city ( I live in Katy) and anywhere from 22 to 25 mpg. on I-10, Beltway 8 or Highway 99.  I use 89 octane shell gas.  I had no idea that the 3.5 ecoboost was so much complicated than the 8cyl. !

Thank you Scotty, stay safe, healthy, prosperous and be blessed.   please keep up making your videos I learn so much form them.

David Eagan