oil pump/Detroit engine failure on 2013 Freightliner - ADVICE NEEDED!

a low-mileage 2013 Freightliner was serviced by a major oil change franchise, with all oils and filters changed or topped off. The truck was deemed in tip-top condition. But within minutes of leaving the shop's location its Detroit engine blew up. The Freightliner dealer's technicians inspected the truck, and determined that the most likely cause of engine failure was oil pump's failure. At the same time, they also stated that the oil pump (and the engine) did not have any recalls and did not have any manufacturer's defects. Since the truck is fairly new, low-mileage, and did not have any problems before being serviced, yet after service had the catastrophic failure, it appears to be solely the fault of the oil change franchise.

Who has had similar experience at any oil shop franchise and what are the suggestions in dealing with the situation?

Also, who knows how could an oil change and other basic maintenance ruin the oil pump in a Detroit engine?

Meanwhile, what can the engine codes reveal? As far as I understand they are useless, as they can't pin the blame on anyone - they just show if this or that failed.

Thanks for all advice.

 

The oil they used is described on the invoice as SH:RO15W40 BULK. Since the engine was not leaking and did not have any problems - except being due for basic service, oil change - why would they use Lucas? It is not denoted anywhere on the invoice, at least.

Also, note that there were no error codes at the time of failure. And we know there were no leaks of oil after the failure, either.

 

The dealer says that the oil pump led to the engine breakdown. Now the entire engine need replacement. I do not know if any valve broke down.