Sadly, since this is the first year, only time and experience will tell.
One of the things with belts is that on most maintenance schedules, there’s both a mileage recommendation and a time recommendation, with replacement at whichever comes first. Chains are pretty much usually good for the life of the engine.
If you check the Fordtechmakuloco channel on YouTube, he describes pretty well how Ford plays fast and loose with their maintenance schedules. So don’t be surprised if you need to spend several hours if you do it yourself, or over a grand if you trust a shop to do it; when the time comes to change some belt that provides an imperceptible advantage in the short term. Pretty much every EPA mileage improvement in the last decade has been at the expense of owners and if you factor in the shorter lifespan of modern vehicles along with the added maintenance costs, along with the inefficiencies that go along with those factors, I have little doubt that more oil is being burned in the long run chasing all these new problems for the sake of satisfying a test that doesn’t recognize the real world. Kind of like the early low water usage toilets that used half the water but had to be flushed three to four times as much. It’s the law of unintended consequences.
Ford isn’t alone with this trend, other manufacturers are guilty of exaggerating their maintenance costs at the expense of longevity. Things like ‘sealed’ transmissions with ‘lifetime’ fluids, direct injection that cokes up the intake valves, cylinder deactivation that spontaneously deactivates the entire engine under 100K miles, and other concepts that are either a step backward longevity wise or simply not ready for prime time.
About the only real benefit of the newest generation of trucks is improved safety and performance.
Well said Pedaldude.
Now I want to know why did they stop hanging oil pumps on the crankshaft?
Chains wear and stretch, belts stretch and break. While a belt may be reinforced with Kevlar, that will merely increase its resistance to stress, not necessarily make it last longer. Materials have a certain shelf life and are degraded by heat. A metal chain is much less susceptible to these factors, and in a crank mounted situation, the crank will outlast the pump.