Paccar MX13 mechanic error?

Good morning y’all. A lengthy thread. I have a 2023 W990 with an MX13. I had an A service performed and long story short they caused a 8.5 gallon oil loss while I was driving. Road service came and replaced the incorrect filter and the broken gasket was the cause. They found metal shavings in the oil. I had it flushed and replaced the another new filter. I took the truck to a Kenworth dealer. They pulled the pan and found the camshaft damaged. A lengthy repair since they have to pull the motor to do this. That took 10 days. The story I was told that while they were running it working on the injectors it threw a rod. I immediately asked if it was due to the camshaft needing replaced. They said no, it was an engine defect. 2 holes in the engine block. The engine only has 60,000 miles on it. My gut instinct is telling me it was the error of the mechanic. I do not believe they torqued it down correctly. They now also have to replace the head. They are supposed to have it completed on 4-7. This will be a month they have had the truck. I am still making the Truck payment, and now the rental truck. My question is do you think I should contact Paccar corporate asking for compensation? Have them investigate? Any suggestions or opinions from an experienced mechanic would be greatly appreciated

 

No it was not the dealer that did the original damage. I assume the inspection was completed. The dealer is being very vague. They have a short block they are replacing the engine with and they also had to replace the head.

 

Thank you. Yes I read the fine print and see where I have limited recourse. Thank you