Its not BS, it happened. Just because you never heard of it does not mean it did not happen. His engine was beyong repair it was so damaged, he was travelling at the speed limit (or more) when it quit.
I don't think he had over 100,000 miles because he bought the car used with very low mileage from a GM dealer, it was 2-3 yrs old if I recall correctly. I do recall the reason it was said of why it was traded in was the owner wifes was getting sick from the diesel odor. I think back then the warranty was 3 yrs / 36,000 miles. I distinctly recall he could not get a new crate engine from GM at the time this happened.