DO NOT, again DO NOT listen or take their advice to the Bank please. They are setting you up to fail. Same thing they claimed when the 5.0L was launched in 2010 to 2012 regarding the L322 and the Sport until the Engines started giving up and they stepped back and recommended oil change at every 10K miles. I don’t know how long you plan on keeping the truck but regardless this will have unattended consequences in the future.I called the dealership to set up my one year/10k mile service and was informed that for the 2020 models and up the service/oil change isn't needed until 24 months or 21k miles. I asked to speak with a service advisor and she confirmed. That's pretty crazy to not get an oil change for 21k miles.
I change my oil every 6 months even if it has 1K miles driven.